Question

Write a balanced chemical equation depicting the formation of one mole of h2o2(g) from its elements in their standard states. express your answer as a chemical equation. identify all of the phases in your answer.

Answer 1

Answer: $H_2(g)+O_2(g)--\ \textgreater \ H_2O_2(g)$

Explanation:

The substance H2O2 is named hydrogen peroxide.

The formation of H2O2 by the direct combination of its elements, H2 and O2, requires the use of catalyst.

The letter g in parenthesis indicate that the elements, and the product, are in gas state (phase).

Hydrogen peroxide is a strong oxidizer, potentially explosive and is widely use in the paper industry.

H2O2 decomposes easily to form water and oxygen with a ΔHo of −98.2 kJ/mol , which means that the formation has a ΔHo of 98.2 kJ/mol.