Question

h₂o₂→h₂o+o₂
synthesis
decomposition
single displacement
double displacement
combustion

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 (\(H_2O_2\)) (a single compound) is breaking down into water (\(H_2O\)) and oxygen (\(O_2\)) (two simpler substances).

• Synthesis reaction: Two or more substances combine to form a single compound. For example, \(2H_2+O_2

ightarrow 2H_2O\).

• Single - displacement reaction: An element reacts with a compound and displaces another element from the compound. For example, \(Zn + CuSO_4

ightarrow ZnSO_4+Cu\).

• Double - displacement reaction: Two compounds exchange ions. For example, \(AgNO_3+NaCl

ightarrow AgCl + NaNO_3\).

• Combustion reaction: A substance reacts with oxygen, usually with the release of heat and light. For example, \(CH_4 + 2O_2

ightarrow CO_2+2H_2O\).

Answer:

B. Decomposition