Chemistry, asked by kelsang73, 7 months ago

(b)
ive example of each of the following chemical
(d)
a) A reaction involving
0) change of state ) formation of precipitate

Answers

Answered by mail2shriyanair
0

Answer:

Explanation: when lead nitrate is added with pottassium iodide there is a formmation of a yellow precipitate .[ activity 1.2 class 10 ncert]

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Answered by sudhiragarwal129
0

Answer:

(a) (i) C(s)+ 2S → CS2(l)

(ii) FeSO4 (aq) + 2NaOH (aq) → Fe(OH)2↓+Na2SO4 (aq)

(b) Exothermic reaction: When carbon burns in oxygen to form carbon dioxide, a lot of heat is produced.

C + O2 → CO2 + Heat

Endothermic reaction: When carbon is heated with sulphur at high temperature, liquid carbon disulphide is formed.

C + 2S + heat → CS2

(c) Cu (s) (brown) + 2H2SO4 (aq) → CuSO4 (aq) (blue)+ 2H2O (l) +SO2

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