Question

Which statement is true about this chemical equation?

2H₂+O₂→2H₂ O
a) Hydrogen is oxidized.
b) Oxygen is reduced.
c) Water is the reactant.
d) The number of moles of reactants equals the number of moles of products.

Answer 1

Hydrogen is oxidized and oxygen is reduced in the reaction 2H₂ + O₂ → 2H₂O, which also shows that the moles of reactants equal the moles of products.

Step-by-step explanation:

The statement that is true about the chemical equation 2H₂ + O₂ → 2H₂O is that hydrogen is oxidized and oxygen is reduced. In this reaction, hydrogen gains oxygen, which means it undergoes oxidation. Conversely, oxygen gains hydrogen and its oxidation state decreases from 0 in O₂ to -2 in H₂O, indicating reduction. Lastly, the number of moles of reactants equals the number of moles of products, as shown by the balanced chemical equation.