Question

select the correct answer.
aluminum can react with oxygen gas to produce aluminum oxide (al₂o₃). what type of reaction is this?
a. single - replacement
b. synthesis
c. double - replacement
d. decomposition

Explanation:

• A synthesis reaction combines two or more substances to form a single product. Here, aluminum (\(Al\)) and oxygen (\(O_2\)) combine to form aluminum oxide (\(Al_2O_3\)).
• A single - replacement reaction has one element replacing another in a compound (\(A + BC

ightarrow AC + B\)).

• A double - replacement reaction involves the exchange of ions between two compounds (\(AB+CD

ightarrow AD + CB\)).

• A decomposition reaction breaks a single compound into two or more simpler substances (\(AB

ightarrow A + B\)).

Answer:

B. synthesis