Question

Use the chemical reaction to answer the question. 2H2O2→2H2O +O2 Which statement about the reaction is correct? (1 point) Responses The H2O and O2 produced have the same mass as the original H2O2. The H 2 O and O 2 produced have the same mass as the original H 2 O 2 . H2O2 has the same properties as H2O and O2. H 2 O 2 has the same properties as H 2 O and O 2 . Atoms of H2 and O2 are lost during the reaction. Atoms of H 2 and O 2 are lost during the reaction. The reaction creates new atoms of H2O and O2.

Answer 1

The correct statement about the reaction \( 2H_2O_2 \rightarrow 2H_2O + O_2 \) is:

The H2O and O2 produced have the same mass as the original H2O2.

This is because the law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction, meaning that the total mass of the reactants (in this case, hydrogen peroxide, H2O2) is equal to the total mass of the products (water, H2O, and oxygen, O2).

The other statements are incorrect:

• H2O2 does not have the same properties as H2O and O2; they are different substances with different properties.
• No atoms are lost during the reaction; they are simply rearranged.
• The reaction does not create new atoms, but rather transforms existing atoms into different compounds.