Question

question 13 of 20
what type of reaction is this? (5 points)
extra content
h2o2 → h2o + o2
a. synthesis/combination
b. decomposition
c. single replacement
d. double replacement
e. combusion

Explanation:

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler substances. In the given reaction \(H_2O_2
ightarrow H_2O + O_2\), hydrogen peroxide (\(H_2O_2\)) is breaking down into water (\(H_2O\)) and oxygen (\(O_2\)). This fits the definition of a decomposition reaction.

• Synthesis/combination (A): Involves combining two or more substances to form a single compound. This is the opposite of what's happening here.
• Single replacement (C): One element replaces another in a compound. No such substitution is seen in \(H_2O_2

ightarrow H_2O + O_2\).

• Double replacement (D): Two compounds exchange ions. This reaction does not involve ion - exchange between two compounds.
• Combustion (E): Usually involves a substance reacting with oxygen to produce heat and often carbon dioxide and water (for hydrocarbon combustion). This is not a combustion reaction as it's just the breakdown of \(H_2O_2\).

Answer:

B. decomposition