Question

classify the reaction:
2c₂h₂ + 5o₂ → 4co₂ + 2h₂o
your answer

classify the reaction:
cao + so₃ → caso₄
your answer

classify the reaction:
h₂o₂ → h₂o + o₂
your answer

Explanation:

• For the reaction \(2C_{2}H_{2}+5O_{2}\to4CO_{2}+2H_{2}O\), it is a combustion reaction as a hydrocarbon (\(C_{2}H_{2}\)) reacts with oxygen (\(O_{2}\)) to produce carbon dioxide (\(CO_{2}\)) and water (\(H_{2}O\)).
• For the reaction \(CaO + SO_{3}\to CaSO_{4}\), it is a synthesis reaction (also known as a combination reaction) because two reactants (\(CaO\) and \(SO_{3}\)) combine to form a single product (\(CaSO_{4}\)).
• For the reaction \(H_{2}O_{2}\to H_{2}O+O_{2}\), it is a decomposition reaction as a single reactant (\(H_{2}O_{2}\)) breaks down into two products (\(H_{2}O\) and \(O_{2}\)).

Answer:

1. Combustion reaction
2. Synthesis (combination) reaction
3. Decomposition reaction