Question

- Name
this
draction
the following and give equation
for these
A white solid, which when heated,leaves behind a dirty white solid and gives co2​

Answer 1

Answer:

CuCO3(g)→CO2(g)+CuO(s)

Explanation:

Therefore, the green substance is a compound and the change is a chemical change since giving off a gas is one of the several indication of a chemical change that include:

1 Gas evolution

2 Formation of a precipitate

3 Evolution of heat

4 Odor

5 Color change etc.

The question describes an experiment similar to the decomposition of copper(II) carbonate (CuCO3) which is when heated in decomposes into carbon dioxide gas (CO2) and copper(II) oxide (CuO)