Question

which of the following are true of the equation below?
2nacl → 2na + cl₂
select two correct answers.
☐ it is a synthesis reaction.
☐ it is a decomposition reaction.
☐ it is a single replacement reaction
☐ the equation is not balanced.
☐ the equation is balanced.

Explanation:

1. Reaction Type Analysis: A decomposition reaction is when a single compound breaks down into two or more simpler substances. The equation \( 2\text{NaCl}

ightarrow 2\text{Na} + \text{Cl}_2 \) shows sodium chloride (a single compound) breaking into sodium and chlorine, so it is a decomposition reaction.

1. Balancing the Equation: Count the atoms on each side:

• Left (reactants): \( 2 \, \text{Na} \), \( 2 \, \text{Cl} \) (from \( 2\text{NaCl} \)).
• Right (products): \( 2 \, \text{Na} \) (from \( 2\text{Na} \)) and \( 2 \, \text{Cl} \) (from \( \text{Cl}_2 \)).

Atoms are balanced, so the equation is balanced.

Answer:

B. It is a decomposition reaction
E. The equation is balanced