write a balanced chemical equation for the standard formation reaction of gaseous formaldehyde (ch₂o).
write a balanced chemical equation for the standard formation reaction of gaseous formaldehyde (ch₂o).
Answer
Answer:
$C(s) + H_2(g)+\frac{1}{2}O_2(g)\rightarrow CH_2O(g)$
Explanation:
Step1: Define standard - formation reaction
A standard - formation reaction is the formation of one mole of a compound from its constituent elements in their standard states.
Step2: Identify constituent elements
The elements in $CH_2O$ are carbon (C), hydrogen ($H_2$), and oxygen ($O_2$). Carbon in its standard state is solid (graphite), hydrogen is a diatomic gas ($H_2$), and oxygen is a diatomic gas ($O_2$).
Step3: Balance the equation
To form one mole of $CH_2O(g)$, we need 1 mole of C(s), 1 mole of $H_2(g)$, and $\frac{1}{2}$ mole of $O_2(g)$. So the balanced chemical equation for the standard - formation reaction of gaseous formaldehyde is $C(s) + H_2(g)+\frac{1}{2}O_2(g)\rightarrow CH_2O(g)$.