Question

balancing chemical equations
andras hooper
hydrogen gas and oxygen gas combine to make water
$\ce{h_{2} + o_{2} -> h_{2}o}$
multiple - choice question
is this reaction balanced?
yes
no

Explanation:

Step1: Count reactant atoms

Reactants: $H_2 + O_2$ → H atoms: $2$, O atoms: $2$

Step2: Count product atoms

Product: $H_2O$ → H atoms: $2$, O atoms: $1$

Step3: Compare atom counts

Oxygen atoms are unequal (2 vs 1); reaction is unbalanced.

Answer:

No