Question

identify the type of reaction for the chemical equation 2na + cl₂ → 2nacl. synthesis reaction; single replacement reaction; decomposition reaction; double replacement reaction

Explanation:

To identify the reaction type, we analyze the chemical equation \( 2\text{Na} + \text{Cl}_2
ightarrow 2\text{NaCl} \). A synthesis reaction is defined as a reaction where two or more reactants combine to form a single product. Here, sodium (Na) and chlorine gas (\( \text{Cl}_2 \)) combine to form sodium chloride (NaCl), which fits the synthesis reaction pattern. A single replacement reaction involves one element replacing another in a compound, which is not the case here. A decomposition reaction is the opposite of synthesis (a compound breaking into simpler substances), and a double replacement reaction involves the exchange of ions between two compounds, neither of which apply here.

Answer:

A. Synthesis reaction