balancing of reactions examples to practice

1. NaH2PO4 -> NaPO3 + H2O
2. H2CO3 -> H2O + CO2
3. BaSO4 + H2SO4 -> Ba(HSO4)2
4. CaCO3 -> CaO + CO2
5. CaO + H2O -> Ca(OH)2
6. H2SO3 -> H2O + SO2
7. H3PO4 + Ca(OH)2 -> CaHPO4.2H2O
8. NaPO3 + CuO -> NaCuPO4
9. SO3 + H2O -> H2SO4
10. Be(OH)2 -> BeO + H2O
11. BaO + H2O -> Ba(OH)2
12. Na2SO3 + S -> Na2S2O3
13. SO2 + H2O -> H2SO3
14. Li2O + H2O -> LiOH
15. Na2HPO4 -> Na4P2O7 + H2O
16. H4As2O7 -> As2O5 + H2O
17. CaC2 + N2 -> CaCN2 + C
18. Mg(OH)2 -> (MgOH)2O + H2O
19. HAsO3 -> As2O5 + H2O
20. KHSO4 -> K2S2O7 + H2O
21. H3PO4 -> H4P2O7 + H2O
22. NaCl + NH4HCO3 -> NaHCO3 + NH4Cl
23. HAsO2 -> As2O3 + H2O
24. UO3 + H2 -> UO2 + H2O
25. CdSO4 + H2S -> CdS + H2SO4
26. HIO3 -> I2O5 + H2O
27. Ca(HCO3)2 -> CaCO3 + CO2 + H2O
28. FeS + H2SO4 -> H2S + FeSO4
29. (NH4)2SO4 + CaCO3 -> (NH4)2CO3 + CaSO4
30. Hg2CO3 -> Hg + HgO + CO2
31. CaSO4 -> CaS + O2
32. BeF2 + Mg -> MgF2 + Be
33. Mg + N2 -> Mg3N2
34. SiO2 + Ca(OH)2 -> CaSiO3 + H2O
35. K2O + H2O -> KOH
36. C + H2O -> CO + H2
37. Ca(OH)2 + CO2 -> Ca(HCO3)2
38. N2O3 + H2O -> HNO2
39. SiO2 + Na2CO3 -> Na2SiO3 + CO2
40. BaO2 + H2SO4 -> BaSO4 + H2O2
41. Na2Cr2O7 + S -> Cr2O3 + Na2SO4
42. Ca(OH)2 + CO2 -> CaCO3 + H2O
43. Fe2O3 + SiO2 -> Fe2Si2O7
44. CO2 + NH3 + H2O -> NH4HCO3
45. Na2O + H2O -> NaOH
46. NH4NO3 -> N2O + H2O
47. N2O5 + H2O -> HNO3
48. CaS + H2O -> Ca(OH)2 + H2S
49. Al(OH)3 + NaOH -> NaAlO2 + H2O
50. (CuOH)2CO3 -> CuO + CO2 + H2O
51. SrBr2 + (NH4)2CO3 -> SrCO3 + NH4Br
52. H2O2 -> H2O + O2
53. Ca(ClO3)2 -> CaCl2 + O2
54. PCl5 + H2O -> POCl3 + HCl
55. Zn + KOH -> K2ZnO2 + H2
56. Al2O3 + Na2CO3 -> NaAlO2 + CO2
57. PCl5 + KNO2 -> NOCl + POCl3 + KCl
58. Zn + HCl -> ZnCl2 + H2
59. BeO + C + Cl2 -> BeCl2 + CO
60. AgBr + Na2S2O3 -> Na3[Ag(S2O3)2] + NaBr
61. N2 + O2 -> N2O
62. BeSO4 + NH4OH -> Be(OH)2 + (NH4)2SO4
63. Cu(CN)2 -> CuCN + C2N2
64. SiC + Cl2 -> SiCl4 + C
65. NH3 + O2 -> HNO3 + H2O
66. Fe2(C2O4)3 -> FeC2O4 + CO2
67. H2 + O2 -> H2O
68. K + Br2 -> KBr
69. CO + O2 -> CO2
70. HNO2 + O2 -> HNO3
71. O2 -> O3
72. NaHCO3 -> Na2CO3 + CO2 + H2O
73. CO2 + NH3 -> OC(NH2)2 + H2O
74. Xe + F2 -> XeF6
75. MnS + HCl -> H2S + MnCl2
76. CaC2 + H2O -> C2H2 + Ca(OH)2
77. ClO2 + H2O -> HClO2 + HClO3
78. CuSO4 + KCN -> Cu(CN)2 + K2SO4
79. NaOH + FeSO4 -> Na2SO4 + Fe(OH)2
80. Ca(OH)2 + H3PO4 -> CaHPO4 + H2O
81. PbCrO4 + HNO3 -> Pb(NO3)2 + H2CrO4
82. HgO -> Hg + O2
83. (CN)2 + NaOH -> NaCN + NaOCN + H2O
84. BaCO3 + HNO3 -> Ba(NO3)2 + CO2 + H2O
85. H3AsO4 -> As2O5 + H2O
86. CaO + C -> CaC2 + CO
87. Zn(OH)2 + NaOH -> Na2ZnO2 + H2O
88. HNO3 + P2O5 -> N2O5 + HPO3
89. UF4 + Mg -> MgF2 + U
90. Mn2O3 + Al -> Al2O3 + Mn
91. MnO2 + K2CO3 + KNO3 -> K2MnO4 + KNO2 + CO2
92. AlN + H2O -> NH3 + Al(OH)3
93. Ca3(PO4)2 + H2SO4 -> CaSO4 + Ca(H2PO4)2
94. S + N2O -> SO2 + N2
95. N2 + H2 -> NH3
96. CaCO3 + HCl -> CaCl2 + H2O + CO2
97. As2O3 + H2O -> H3AsO3
98. Be(OH)2 + NH4HF2 -> (NH4)2BeF4 + H2O
99. NaOH + Zn(NO3)2 -> NaNO3 + Zn(OH)2
100. MgNH4PO4 -> Mg2P2O7 + NH3 + H2O
101. H3PO4 + Ca(OH)2 -> Ca(H2PO4)2 + H2O
102. [Ag(NH3)2]Cl + HNO3 -> NH4NO3 + AgCl
103. CaS + H2O -> Ca(HS)2 + Ca(OH)2
104. Cu + CO2 + O2 + H2O -> CuCO3.Cu(OH)2
105. (NH4)2BeF4 -> BeF2 + NH3 + HF
106. Sn(OH)2 + NaOH -> Na2SnO2 + H2O
107. NH4VO3 -> V2O5 + NH3 + H2O
108. H3AsO3 -> As2O3 + H2O
109. NaCl + H2SO4 -> Na2SO4 + HCl
110. Fe(OH)3 -> Fe2O3 + H2O
111. As2O5 + H2O -> H3AsO4
112. NaOH + Cl2 -> NaCl + NaClO + H2O
113. VO2Cl + NH4OH -> NH4VO3 + NH4Cl + H2O
114. B2O3 + H2O -> H3BO3
115. CH4 + O2 -> CO2 +H2O
116. SiH4 + O2 -> SiO2 + H2O
117. TiCl4 + Mg -> MgCl2 + Ti
118. Pb(OH)2 + NaOH -> Na2PbO2 + H2O
119. Si + NaOH + H2O -> Na2SiO3 + H2
120. Si + S8 -> Si2S4
121. CaS2 + O2 -> CaS2O3
122. Na2SnO3 + H2S -> SnS2 + NaOH + H2O
123. Na2S2 + O2 -> Na2S2O3
124. (NH4)2Cr2O7 -> Cr2O3 + N2 + H2O
125. HCl + K2CO3 -> KCl + H2O + CO2
126. KClO3 -> KCl + O2
127. Zn + NaOH + H2O -> Na2Zn(OH)4 + H2
128. Na2CO3 + HCl -> NaCl + H2O + CO2
129. Ca(OH)2 + P4O10 + H2O -> Ca(H2PO4)2
130. CaS + H2O + CO2 -> Ca(HCO3)2 + H2S
131. Sn(OH)4 + NaOH -> Na2SnO3 + H2O
132. Na + H2O -> NaOH + H2
133. Ca3(PO4)2 + SiO2 -> CaSiO3 + P2O5
134. FeCl3 + NH4OH -> Fe(OH)3 + NH4Cl
135. H3PO3 -> H3PO4 + PH3
136. AlCl3 + AgNO3 -> AgCl + Al(NO3)3
137. KOH + AlCl3 -> KCl + Al(OH)3
138. H2SO4 + NaHCO3 -> Na2SO4 + CO2 + H2O
139. SiO2 + HF -> SiF4 + H2O
140. CaCN2 + H2O -> CaCO3 + NH3
141. HCl + HNO3 -> NOCl + Cl2 + H2O
142. KClO3 -> KClO4 + KCl
143. P4 + O2 -> P2O5
144. P4O10 + HCl -> POCl3 + HPO3
145. Sb + O2 -> Sb4O6
146. NH4Cl + Ca(OH)2 -> CaCl2 + NH3 + H2O
147. KBr + Al(ClO4)3 -> AlBr3 + KClO4
148. AgNO3 + FeCl3 -> Fe(NO3)3 + AgCl
149. Ca3(PO4)2 + H3PO4 -> Ca(H2PO4)2
150. POCl3 + H2O -> H3PO4 + HCl
151. C2H5OH + O2 -> CO + H2O
152. UO2 + HF -> UF4 + H2O
153. Ag2S + KCN -> KAg(CN)2 + K2S
154. C + SiO2 + Cl2 -> SiCl4 + CO
155. PCl3 + H2O -> H3PO3 + HCl
156. H3PO4 + (NH4)2MoO4 + HNO3 -> (NH4)3PO4.12MoO3 + NH4NO3 + H2O
157. MnO2 + HCl -> MnCl2 + H2O + Cl2
158. Fe2O3 + C -> CO + Fe
159. PCl5 + P2O5 -> POCl3
160. FeO + H3PO4 -> Fe3(PO4)2 + H2O
161. Ca(NO3)2 -> CaO + NO2 + O2
162. Fe + O2 -> Fe2O3
163. Fe2O3 + H2 -> Fe + H2O
164. FeSO4 + K3[Fe(CN)6] -> Fe3[Fe(CN)6]2 + K2SO4
165. NH3 + O2 -> HNO2 + H2O
166. Al + O2 -> Al2O3
167. BaCl2 + Al2(SO4)3 -> BaSO4 + AlCl3
168. Fe2(SO4)3 + Ba(NO3)2 -> BaSO4 + Fe(NO3)3
169. Au2S3 + H2 -> Au + H2S
170. Au + HCl + HNO3 -> AuCl3 + NO + H2O
171. NiS + O2 -> NiO + SO2
172. Al + FeO -> Al2O3 + Fe
173. C2H5OH + O2 -> CO2 + H2O
174. Na2O2 + H2O -> NaOH + O2
175. Fe2O3 + CO -> Fe + CO2
176. Pb(NO3)2 -> PbO + NO2 + O2
177. Al2(SO4)3 + Ca(OH)2 -> CaSO4 + Al(OH)3
178. Au2O3 -> Au + O2
179. Ca3(PO4)2 + H2SO4 -> CaSO4 + H3PO4
180. SiCl4 + H2O -> H4SiO4 + HCl
181. Ca + AlCl3 -> CaCl2 + Al
182. FeCl3 + Ca(OH)2 -> CaCl2 + Fe(OH)3
183. Al2O3 + C + N2 -> AlN + CO
184. NO + NaOH -> NaNO2 + H2O + N2O
185. Pb3O4 + HNO3 -> Pb(NO3)2 + PbO2 + H2O
186. CuSO4 + KCN -> CuCN + K2SO4 + C2N2
187. KO2 + CO2 -> K2CO3 + O2
188. P4O6 -> P4 + P2O4
189. P4O10 + H2O -> H3PO4
190. Al + KOH + H2O -> KAlO2 + H2
191. Fe + H2O + O2 -> Fe2O3.H2O
192. H3PO4 + HCl -> PCl5 + H2O
193. MnO2 + KOH + O2 -> K2MnO4 + H2O
194. K2CO3 + C + N2 -> KCN + CO
195. PCl5 + H2O -> H3PO4 + HCl
196. P4O6 + H2O -> H3PO3
197. Al(OH)3 + H2SO4 -> Al2(SO4)3 + H2O
198. Fe2(SO4)3 + KOH -> K2SO4 + Fe(OH)3
199. Bi(NO3)3 + H2S -> Bi2S3 + HNO3
200. V2O5 + HCl -> VOCl3 + H2O
201. Cr(OH)3 + H2SO4 -> Cr2(SO4)3 + H2O
202. Hg(OH)2 + H3PO4 -> Hg3(PO4)2 + H2O
203. Fe + H2O -> Fe3O4 + H2
204. Ca3P2 + H2O -> Ca(OH)2 + PH3
205. H2SO4 + Al(OH)3 -> Al2(SO4)3 + H2O
206. Al(NO3)3 + Na2CO3 -> Al2(CO3)3 + NaNO3
207. K2MnO4 + H2SO4 -> KMnO4 + MnO2 + K2SO4 + H2O
208. Na3AsO3 + H2S -> As2S3 + NaOH
209. Mg3N2 + H2O -> Mg(OH)2 + NH3
210. Fe3O4 + H2 -> Fe + H2O
211. C2H2 + O2 -> CO2 + H2O
212. (NH4)2Cr2O7 -> NH3 + H2O + Cr2O3 + O2
213. C3H8 + O2 -> CO2 + H2O
214. As + NaOH -> Na3AsO3 + H2
215. H3BO3 + Na2CO3 -> Na2B4O7 + CO2 + H2O
216. Al + HCl -> AlCl3 + H2
217. V2O5 + Ca -> CaO + V
218. H3BO3 -> H4B6O11 + H2O
219. Na2B4O7 + HCl + H2O -> NaCl + H3BO3
220. Pb + Na + C2H5Cl -> Pb(C2H5)4 + NaCl
221. C2H3Cl + O2 -> CO2 + H2O + HCl
222. CaHPO4.2H2O + NaOH + H2O -> Na2HPO4.12H2O + Ca(OH)2
223. Ca3(PO4)2 + SiO2 -> P4O10 + CaSiO3
224. Se + NaOH -> Na2Se + Na2SeO3 + H2O
225. Al + NaOH + H2O -> NaAl(OH)4 + H2
226. K3AsO4 + H2S -> As2S5 + KOH + H2O
227. I2 + HNO3 -> HIO3 + NO2 + H2
228. Al + NH4ClO4 -> Al2O3 + AlCl3 + NO + H2O
229. FeS + O2 -> Fe2O3 + SO2
230. Ca3(PO4)2 + C -> Ca3P2 + CO
231. FeC2O4⋅2H2O + H2C2O4 + H2O2 + K2C2O4 -> K3[Fe(C2O4)3]⋅3H2O
232. MgNH4AsO4.6H2O -> Mg2As2O7 + NH3 + H2O
233. H2SO4 + HI -> H2S + I2 + H2O
234. U3O8 + HNO3 -> UO2(NO3)2 + NO2 + H2O
235. (NH4)3AsS4 + HCl -> As2S5 + H2S + NH4Cl
236. Pb3(VO4)2.PbCl2 + HCl -> VO2Cl + PbCl2 + H2O
237. NH3 + O2 -> NO + H2O
238. Hg2CrO4 -> Cr2O3 + Hg + O2
239. Al4C3 + H2O -> CH4 + Al(OH)3
240. Ca10F2(PO4)6 + H2SO4 -> Ca(H2PO4)2 + CaSO4 + HF
241. Ca5F(PO4)3 + H2SO4 -> Ca(H2PO4)2 + CaSO4 + HF
242. UO2(NO3)2.6H2O -> UO3 + NO2 + O2 + H2O
243. S8 + O2 -> SO3
244. NH3 + NO -> N2 + H2O
245. HClO4 + P4O10 -> H3PO4 + Cl2O7
246. Au + KCN + O2 + H2O -> K[Au(CN)2] + KOH
247. CO2 + H2O -> C6H12O6 + O2
248. V2O5 + Al -> Al2O3 + V
249. FeS2 + O2 -> Fe2O3 + SO2
250. Si2H3 + O2 -> SiO2 + H2O
251. P4 + H2O -> H3PO4 + H2
252. H2S + Cl2 -> S8 + HCl
253. C4H10 + O2 -> CO2 + H2O
254. Ca3(PO4)2 + SiO2 + C -> CaSiO3 + P4 + CO
255. C6H6 + O2 -> CO2 + H2O
256. C10H16 + Cl2 -> C + HCl
257. C7H6O2 + O2 -> CO2 + H2O
258. C7H16 + O2 -> CO2 + H2O
259. C7H10N + O2 -> CO2 + H2O + NO2
260. KNO3 + C12H22O11 -> N2 + CO2 + H2O + K2CO3
261. K4Fe(CN)6 + KMnO4 + H2SO4 -> KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O
262. K3[Fe(SCN)6] + Na2Cr2O7 + H2SO4 -> Fe(NO3)3 + Cr2(SO4)3 + CO2 + H2O + Na2SO4 + KNO3
263. K4[Fe(SCN)6] + K2Cr2O7 + H2SO4 -> Fe2(SO4)3 + Cr2(SO4)3 + CO2 + H2O + K2SO4 + KNO3
264. CO2 + H2O → C6H12O6 + O2
265. SiCl4 + H2O → H4SiO4 + HCl
266. Al + HCl → AlCl3 + H2
267. Na2CO3 + HCl → NaCl + H2O + CO2
268. C7H6O2 + O2 → CO2 + H2O
269. Fe2(SO4)3 + KOH → K2SO4 + Fe(OH)3
270. Ca(PO4)2 + SiO2 → P4O10 + CaSiO3
271. KClO3 → KClO4 + KCl
272. Al2(SO4)3 + Ca(OH)2 → Al(OH)3 + CaSO4
273. H2SO4 + HI → H2S + I2 + H2O

10th cbse class science and maths all playlists videos links

Videos Playlist of science 

1.light lesson
LIGHT 10TH CBSE: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vqc1MjysO-w2x0QOSN8IJAQ

2.electromagnetism
Electromagnetism: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqtEUojCCubuS-LP-IJhv51

3.current electricity
Current electricity: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqIle4OU3LwDLcGoRhWwhH2

4.eye
HUMAN EYE COLOURFUL WORLD: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vra9rnJF7h5otZ5ETB33U3f

5.life process
Life process 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VrTJ-QOpt9u05qZDxtiWaBk

6.environment
Our environment lesson 10th class: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpMfJjCnbZvv0eg9zM0LOZx

7.Periodic classification: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqIguTAEYo1kTImVK1G1Sgr

8.Organic chemistry carbon compounds: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqDVNdT6biOxExDC9EzzmuL

9.Metals and non metals metallurgy: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpFRI3VA4iCVH33y0CGmQ6s

10.Acids bases and salts: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpGkobVEhLzRf9wokpLA-Bd

11.Chemical reactions: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vo_vzvcYgdjtK-WMHvkBqp0

12.reproduction lesson 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vr2xftVEDh78k-2LxmRqIUT

13.Heredity and evolution 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Voi25AJG_m730kfA8Hvn7hL

Video playlists for math 

1.Real numbers 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vo5rYjDz9_zvzFT-46XQxP9

2.Coordinate geometry 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vpb24XWEU8NQl-pkPdxlpmu

3.Polynomials 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpOAkeALYvRgTi8yDlCzBK_

4.QUADRATIC EQUATIONS 10TH CBSE: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpHxD1SbTk4hAPT46iN5eo2

5.Linear equations 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqAXR0N1jTpThDjm1Y5ugKx

6.Triangles 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vr8GFQIQJXVofsDn7coY9S0

7.Statistics 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpRY6mQXR51OeK10amSHzdk

8.Probability topic basics and sums: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpkvvPaf5P5VDbqDrwFZyRo

9.constructions
Constructions of triangles and circles 10th cbse maths: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpoUwML9EAUFrSvl3dGrQQa

10.trigonometry
Trigonometry 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpUAhijnZiurskfnVcwzBca

11.areas related to Circles
Areas related to circles 10th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VonTzDCWcEw8rW8H1_9-qQb

12.applications of trigonometry
Applications of trignometry: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqtTrInl1KYPKIpLfYmv-dN

13.

9th class cbse videos and playlists links maths and science

Full  9th cbse syllabus MATHS and  SCIENCE playlists

MATHS VIDEOS

1.Triangles 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpLUtTicC5Ul5ZGPioXCc8J

2.Surface areas and volumes 9th cbse text book ncert: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqhkXdnMPfahAoKJ5VzhATC

3.Lines and angles
https://youtube.com/playlist?list=PLU_OV_3Up8VqWhlKVqVrJxTrlR9g9e5-u

4.Number systems 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VokOkaDQkMGDNo4DqMh19BV

5.Constructions 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqfRrrAvsVs-zNY2Cm1RGee

6.Statistics 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vq78dLjQ0bOJvShoj7KYM_0

7.Probability topic basics and sums: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpkvvPaf5P5VDbqDrwFZyRo

8.Linear equations in 2 variables 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpCNhbrnywAFzIT2Pk3I8vv

9.Circles 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VqQuxOnOFr29J_SZgYOL3sh

10.Number systems 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VokOkaDQkMGDNo4DqMh19BV

SCIENCE TOPICS

1.Force newtons law 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vr30CbnGo2iTU46ceatt_jL

2.Gravitation lesson 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vp7L-hVAmDiQNpbPYoSKBCS

3.Work power energy 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Vrklp4uUqqMC7Gpbqd2jwKC

4.Is matter around us pure 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VoitkVVMA8F8W5GJ2_e61Vj

5.Cell 9th cbse Fundamental unit of life 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Voltyx0beWZ8vJ1nnAbrZ37

6.Atoms and molecules 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8Voe39TuTXjPHEDhp4kUhral

7.Atomic structure 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VoXtF896cflF4BiGiEqriCF

8.Lab manual 9th cbse all experiments: https://www.youtube.com/playlist?list=PLU_OV_3Up8VrXE18lpgX-j5dnnI7bd6w_

9.Tissues 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VocFx1tRlddFmbgi1Nqa2rd

10.Natural resources 9th cbse: https://www.youtube.com/playlist?list=PLU_OV_3Up8VpETEiYW5uLrYXVweeoP3Cy

11.Motion kinematics: https://www.youtube.com/playlist?list=PLU_OV_3Up8VraHMuw3ZOOHg-IPkkPxjQM

12.

tissue 9th cbse lesson notes and video links

Tissues

Group of cells that are similar in structure and work together to achieve a particular function is called tissue

Differences between plants and animals for tissues

Plants
Plants are stationary
Don't move
Most of the tissues are supportive
Dead
As dead tissues give more strength and support
Growth is plants at some places continuos
And at some places limited

Animals
Move from place to place in search of food and shelter
They need more energy
So most of there tissues are living
To provide energy
Growth is uniform in animals
No demarcation in dividing and non division regions

Plant cells are classified as
Merisatmantic and permanent tissue

Meristmatic tissue
They are continuously dividing tissue
The cells of this tissue are active
Dense cytoplasm
Thin cellulosic walls
Prominent nucleus
Vacuoless absent
Vacuoles absent because
Meristematic cells divide frequently and give rise to new cells and hence they need dense cytoplasm and thin cell wall. 
Vacuoles causes hindrance in cell division as it is full of cell sap to provide turgidity and rigidity to the cell. ... 
Meristematic cells do not need to store these nutrients as they have compact shape.

Meristmatic tissue is of 3 types
Apical meristems
Internally meristem
Lateral meristem

Apical present in root and shoot tips
Helps in growth og shoot and root

Intercalary meristem
Present in  base of leaves or internodes
Lateral meristems help in increasing girth or circumference

Permanent tissue
Is of tow types
Simple(means they have same type of cells
And
Complex tissues(means they have different types if cell)
Qq
Simple tissues are of 3 types
Parenchyma
Collenchyma
Sclerenchym

Parenchyma

Its a basic packing tissue
They have thin walls
They are living
They are loosely packed
With large intercellular spaces
They give support and  stores food nutrients and water
Parenchyma having chlorophyll is chlorenchyma
Parenchyma having air spaces called arenchyma
(Diagram must learn from text book)


Collenchyma
They give flexibility
They are thickened at corners
They are living
They have little intercellular spaces
It helps in flexibility
Bending
Mechanical support
They are present in parts like
Leaf stalks below epidermis
(Diagram must learn from text book)

Sclerenchyma

It makes plant hard and stiff
Walls are thickened due to lignin
They are dead
They give strength to plant parts
They are present in
Stems
Around vascular bundles
Veins of leaves
Hard covering if seeds
Husk of coconut
(Learn diagram from text book)

Epidermis

Outermost layer of plants is epidermis
It may be single layered or multiple layered as in desert plants

Epidermal cells secrete waxy coating called cutin which is water resistant

This waxy coated epidermis gives
Protects
Against loss of water
Injury
Parasitic fungal invasion

They are continuously without intercellular spaces so that nothing enters inside

They are flat

They are thickened outer and side then inner walls

Epidermis have pores called stomata
Whose function is
Respirqtion
Tranpiration
Photosynthesis

In roots they have long hair like structures which help in increasing surface area of absorption of water and minerals

In desert plants they have very thick waxy coating to prevent loss of water

CORK

As the plants grow old

Outer epidermis is replaced by secondary meristem

Cells are cut off from this layer

This forms several layer of cork or thick bark
Compactly arranged

Cork cells are dead

There cells are thickened by suberin which is impervious to water and gases

COMPLEX TISSUE

complex tissue are xylem and phloem

Xylem and phloem are conducting tissues and called as vascular bundles

Xylem
Xylem consists of
Tracheids
Vessels
Xylem parenchyma
Xylem fibres

Cells have thick and dead

Tracheids and vessels are tubular helps in conduction of water

Parenchyma stores food and side ways conduction of water

Fibres helps in support

Xylem helps in transport of water and minerals

PHLOEM

phloem consists of
Serve tubes
Companion cells
Ploem parenchyma
Phloem fibres

Ploem is living tissue

Serve rubes are perforated

Unlike xylem they can conduct im both directions

Phloem helps in transportation of starch

Animal tissues

Epithelial tissue
Connective tissue
Muscular tissue
Nervous tissue

Epithelial tissue
The covering and protective tissue is epithelial
It covers most of cavities and organs of body
It also forms barrier to keep different organs separqte
They are tightly packed
Forms continuos sheet
They have small cementing between them
No intercellular spaces as tight
Anything entering inside or going outside should cross atleast one layer of epithelium
So its permeability is important
In exchange of various materials
All epithelium are separated from underlying tissue by underlying fibrous basement membrane
Different epitheli show different structures basing on their functions

Simple squamous epithelium

Eg
Lining of blood vessels
Lung alveoli
Oesophagis
Lining if mouth
Skin is also squamous
Where exchanges of substances takes place
They are simple
Flat
Thin
Delicate lining
So that exchange of substances occurs
And they are extremely permeable

Stratified squamous epithelium
At some places
Any layers are present
To avoid wear and tear
As they are in layers
Its called stratified
Example
In sole of feet

Columnar epithelium
When absorption and secretion occurs
Tall eoithelial cells are present
Theses are tall pillar like
Helps in movement across epithelial barrier
Example
Inner lining of intestine
Which liberates enzymes
And also a son's
Digested food
Ciliated epithelium
If counter cells have cilia
Hair like projections
Which help in movement of air
Cilia can move
Can push air or mucous forward
Example
Inner lining of respiratory tracts

Cubical epithelium
They are like cube cells
They give mechanical support
Example
Kidneys
Salivary glands

Glandular epithelium

Sometimes  portion of epithium fold inside
Multicellular gland is formed
They secrete substances at epithelial surface
Example
Lymph gland

Connective tissue

Blood
Bone
Cartilage
Ligament
Tendon
Areolar tissue
Adipose tissue

Blood
Blood is fluid connective tissue
Consist of plasma
And blood cells
Plassma has water ,protien and harmones
Blood cell are
rbc
Wbc
Platelets

Rbc helps in exchange of gases
Wbc gives immunity
Platelets helps in clotting.

Wbc types of cells
Acidophils  Bilobed nucleus
Basophills. Trilobed  nucleus
Neutrophils. Multilobed nucleus
Lymphocytes. Kidney shaped
Monocytes. Round nucleus

Functions of blood are
Exchange of gases
Immunity
Temperature regulation
Harmones travel
And so on

BONE
Bone is another example of framework that supports the body
It also anchors muscles and supports main organs
It is strong and non flexible
Bone cells are embedded in hard matrix
Which is composed of calcium and phosphorus
Cells present in bones are called osteocytes
Osteoclasts
Osteoblasts
Bone lining cells

206 bones are there

LIGAMENT
2 bones are connected by ligament
It is elastic
Has considerable strength
They have little matrix

TENDONS
bone are connected to muscle by tendon
They are fibrous
Great strength
Limites flexibility

CARTILAGE
Cartiqlge has widely spaced cells
Matrix composed of protiens and sugars
Cartilage is smooth
We. An bend cartilage but not bone
They are present
In ear lobes
Nose
Ear
Trachea
Nose
Cells of cartilage are called chondrocytes
Cartiqge don't have blood and nerve
3 types of cartilage are
Hyaline
Elastic
Fibro

AREOLAR TISSUE
Most abundant tissue
Present throughout the body
Found betwewnskin and muscles
Around blood vessels
Around nerves
In bone marrow
Funsctions are

Fills space inside organs
Supports internal organs
Repair tissues

ADIPOSE TISSUE
Fat storing adipose tissue
Found under skin
In between internal organs
Cellas are filled with fat globular
It also acts as
insulator
Store energy
Lrotects internal organs

Cells are called adipocytes
2 types of adipose tissue
White adipose store energy
Brown adipose themoregulation

Adipocytes or fat cells has lipid droplets
Of stored triglycerides
They swell as they store fat
They shrink
As they loose fat

Muscular tissue

Striated  or voluntary
Unstriated  or involuntary
Cardiac or involuntary

Striated or voluntary muscles

Mainly attached to bones and ligaments

Long cylindrical and blunt at ends

Branched

Multinucleate

Voluntary

Light and dark bands are present

Present in limbs  tongue

Unstriated muscles

It is present in those places which are in voluntary

Spindle shaped short

Uninucleate

Involuntary

Nolight and dark bands present

Cardiac
They are present in heart

They are short and braanched

Strition preset
Involuntary

Light and dark bands present

Intercalated disc's are found

Uninuvleate

Is matter around us pure 9th cbse notes and video links

Is matter around us is pure

Definition

Solution is homogeneous mixture of solute and solvent

properties.of solution

1.solution is homogeneous
2.smaller then 1nm
3.cannit be seen with naked eye
4.dont scatter light
5.path of light is not visible
6.solute particles cannot be filtered
7.they do not settle down also

Examples
1.sugar water
2.salt water brine
3.lemon juice
3.aerated drinks
4.air

Solution has
Solute which is less
Solvent which is more im quantity

Types of solutions
1.satutated
Correct amount of solute is present

2.unsatitayed solution
Less amount of solute is present

3.super saturated solution
More amount of solute is present
More caan be mixed by heating solution.
But when cooled
All the extra solute sites down

Concentration of solution
1.mass by mass percentage
Mass of solute ×100/mass of solution

2.mass by volume percentage
Mass of solute x100/volume of solution

3.molarity
Moles of solute/volume of solution in lts

4.solubilty
Mass of solulute x100 /mass of solvent

Numericals to practice

1.0.5 g of salt is dissolved in 25 g of water. Calculate the percentage amount of the salt in the solution.

2.A solution of urea in water contains 16 grams of it in 120 grams of solution. Find out the mass percentage of the solution
.
3.A solution has been prepared by mixing 5.6 mL of alcohol with 75 mL of water. Calculate the percentage (by volume) of alcohol in the solution.

.mass by mass numericals

1.A solution contains 50gms of sugar in 350 gms of water .find mass by mass percentage of solution

2.a solution is prepared by mixing 15gms of NaCl in 200 gms of water find mass by mass percentage of NaCl in solution

3.65 gms of glucose mixed in 435 gms of wqter .calculate mass by mass percentage

4.how much water should be added to get 15gms of salt to get 15% solution

5.sugar syrup of .ass 214.2 g has 34.2 gms of sugar .calculate concentration of sugar in syrup

6.36 gms of NaCl is mixed in 100gms of water .find concentration. Of NaCl

7.how much water should be mixed with 12 ml of alcohol so as to obtain 12% of alcohol solution

8.what mass of potassium nitrates is needed to produce 40% saturated solution of potassium nitrates mixed in 200 gms of water

9.what mass of water is needed to produce 20 % of saturated solution of 50gms of sugar

10.what mass of salt is needed to produce saturated solution of 30% salt solution of 120 gms of water.

11.A solution contains 60gms of sugar in 360 gms of water .find mass by mass percentage of solution

12.A solution contains 70gms of salt in 280gms of water .find mass by mass percentage of solution

13.A solution contains 80gms of baking soda in 400 gms of water .find mass by mass percentage of solution

14.A solution contains 90gms of lime in 340 gms of water .find mass by mass percentage of solution

15.A solution contains 10gms of starch in 240 gms of water .find mass by mass percentage of solution

16.A solution contains 20gms of sugar in 380gms of water .find mass by mass percentage of solution

17.A solution contains 30gms of saltr in 370 gms of water .find mass by mass percentage of solution

18.A solution contains 40gms of na2co3 in 560gms of water .find mass by mass percentage of solution

19.A solution contains 50gms of kno3 in 150gms of water .find mass by mass percentage of solution

20.A solution contains 60gms of caso4 in 740 gms of water .find mass by mass percentage of solution

Volume by volume percentage

1.10 ml of h2so4 is dissolved in 90 ml of water .calculate concentration of h2so4 in water

2..20 ml of h2so4 is dissolved in 180 ml of water .calculate concentration of h2so4 in water

3..30 ml of h2so4 is dissolved in 270ml of water .calculate concentration of h2so4 in water

4..40ml of h2so4 is dissolved in 360ml of water .calculate concentration of h2so4 in water

5..50 ml of h2so4 is dissolved in 450 ml of water .calculate concentration of h2so4 in water

6..60ml of h2so4 is dissolved in 540 ml of water .calculate concentration of h2so4 in water

7..70 ml of h2so4 is dissolved in 630 ml of water .calculate concentration of h2so4 in water

8..80 ml of h2so4 is dissolved in 720ml of water .calculate concentration of h2so4 in water

9..90ml of h2so4 is dissolved in 810ml of water .calculate concentration of h2so4 in water

10..100 ml of h2so4 is dissolved in 200ml of water .calculate concentration of h2so4 in water

Solubility numericals

1.find solubility of 20 gms of salt mixed in 80 gms of water

2..find solubility of 30 gms of salt mixed in 70 gms of water

3..find solubility of 40 gms of salt mixed in 160gms of water

4..find solubility of 50 gms of salt mixed in 350 gms of water

5..find solubility of 25gms of salt mixed in 250gms of water

6..find solubility of 35 gms of salt mixed in 865gms of water

7..find solubility of 20 gms of salt mixed in 180 gms of water

8..find solubility of 30 gms of salt mixed in 520gms of water

9..find solubility of 20 gms of salt mixed in 430 gms of water

10..find solubility of 90 gms of salt mixed in 610 gms of water

Solutions

1..find molarity of NaOH present in 90gms
In 500ml solution

2.find number of molarity of
132 gms of CO2 in 200 ml of solution
68 gms of NH3 in 250 ml of solution
72 gms of H2O in 500 ml
252 gms of HNO3 in 750 ml
24.5 gms of H2SO4 in 1500 ml
196 gms of H3P04 in 2000 ml
45 gms of C6H12O6 in 5000 ml
684 gms of C12H22O11 in 200 ml
92 gms if C2H5OH in 250 ml
15Gms of CH3COOH in 500 ml
171 gms of AL2(SO4)3 in 400 ml
148 gms of NAHCO3 in 2000 ml
229 gms of KCLO3 in 200 ml
284gms of NA2SO4 in 250 ml
39 gms of AL(OH)3 in 500 ml
1590 gms of (NH4)3PO4 in 1000 ml
312 gms of AL2O3 in 200 ml
288gms of NaALO2 in 250 ml
97 gms of H2S208 in 500 ml
229 gms of KClO3 in 100 ml
292.5 gms of NaCl in 200 ml
4gms of So2 in 250 ml
96 gms o f CH4 in 500 ml
210gms of C2H6 in 750 ml
39 gms of C6H6 in 2000 ml
51gms of Na3AlF6 in 500 ml
370gms of Ca(OH)2 in 2000 ml
530 gms of Na2Co3 in 250 ml
610 gms of MgSo4 in 100ml
150gms of Mg3N2 in 1000ml
1310 gms of Mg3(Po4)2 in 200 ml
71 gms of P2O5 in 500ml
47.5 gms of MgCl2 in 1500 ml

Suspension

A suspension is heterogenous mixture in which solute particles do not dissolve but remain suspended through out the bulk of the medium

It is non homogeneous

Solids are dispersed in liquids

Properties of suspensions

1.They are heterogenous

2.particles can be seen with naked eye

3.they scatter light

4.particles get suspended when left undisturbed

5.they can be separated by filtration

Examples of Suspension

Muddy water.

Milk of magnesia.

Sand particles suspended in water.

Flour in water.

Slaked lime for whitewashing.

Paints in which dyes are suspended in turpentine oil.

Paint (Use of suspension)

Mud or muddy water, is where soil, clay, or silt particles are suspended in water.

Flour suspended in water.

Fog water suspended in air.

Chalk powder suspended in water.

Dust particles suspended in air.


Colloids

Particles of colloid are uniformly spread

They are smaller then suspension particles

Due to smaller size if particles

It appears to be homogenous

But actually they are heterogenous

We cannt see with naked eye

Pqrticles scattered light

Effe r is called Tyndall effect

Tyndall effect examples

Fine hole light coming

Fog

Dark qcnopy of forest

Mist in the forest also sxatter light

Properties

Heterogenous

Particles are not big

So don't settle down

But can scatter light

Can't see with naked eye

Can't be separated by filtration

The components of colloid s
Are dispersed phase
Dispersion medium

Solute =dispersed aprticles
Solvent= dispersing medium

Types of colloids

Aerosols
Phase liquid
Medium gas
Egs fog,cloud,mist

Aerosol
Phase solid
Medium gas
Egs.smoke ,automobile exhaust

Foam
Gas in liquid
Shaving cream

Emulsion
Liquid in liquid
Milk and face cream

Sol
Solid in liquid
Milk of magnesia and mud

Foam
Gas in solid
Foam,rubber,sponge,pumice

Gel
Liquid in solid
Jelly cheese butter

Solid sol
Solid in solid
Colured gem stone ,milky glass

Separation of mixtures

1.evoparation

This method is used to separate solute from solvent

Like eg.
Salt from sea water
Ink dyes from ink
Etc

Sea water is subjected to heat in sunlight
Water gets evaporated
Leaving behind salt

Ink is put in watch glass
Mix some water
Heat it
Water gets evaporated leaving
Behind ink dye

Blue Copper suplate becomes white as it looses water of crystallization on heating by evaporation

Drying any food item is also a method of evoparation in sunlight

https://youtu.be/FQLJpmmj3V8

Centrifugation

This is used to separate insoluble materials from liquid

The principle is denser particles are forced to bottom and lighter particles stay at top
When spun rapidly

Eg
In Washing machine to squeeze water from wet clothes

Cream from milk

In diagnostic labs for blood and urine samples

https://youtu.be/3Gz7tAjUOlA

Separating funnel

To separate mixture of two immiscile liquids

The principle is immiscibel liquids separate out in layers depending on their densities

https://youtu.be/ex6IOX7OXOY