Question

STATE YOUR OBSERVATION, WHEN THE FOLLOWING COMPOUNDS ARE HEATED


1. Hydrated copper sulphate

• a) Colour of compound:

• b) Colour o gas evolve on heating

• c) confirmatory test of gas evolved

• d) colour of residue

2. washing soda

a) Colour of compound:

b) Colour o gas evolve on heating

c) confirmatory test of gas evolved

d) colour of residue


3. Copper Carbonate:

• a) Colour of compound:

• b) Colour o gas evolve on heating

• c) confirmatory test of gas evolved

• d) colour of residue


4 Zinc Cabonate

a) Colour of compound:

b) Colour o gas evovlve on heating

c) conirmatory test of gas evolved

d) colour of residue.


5. Lead nitrate :

• a) Colour of compound:

• b) Colour o gas evolved on heating

• c) confirmatory test of gas evolved
• d) colour of residue
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Answer 1

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the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.