Question

Can you explain this single rpelacementCuO(s)+H2(g)=>I thought the answer would be CuH2(s)+O(g) but it is not

Answer 1

ANSWER

$\text{ CuO}_{(s)}\text{ + H}_{2(g)}\text{ }\rightarrow\text{ Cu}_{(s)}\text{ + H}_2O$

EXPLANATION

Single replacement reaction is a type of reaction in which one element is substituted for another element in a compound.

Hence, we have the below reaction as one of the the examples of a single replacement reaction

$\text{ CuO}_{(s)}\text{ + H}_{2(g)\text{ }}\text{ }\rightarrow\text{ Cu}_{(s)}\text{ + H}_2O$

In the above reaction, the hydrogen atom displaced the copper atom in CuO. This is because hydrogen is more reactive than copper in the activity series chart.