Question

reaction
__ k + br₂ → __ kbr

Explanation:

Step1: Balance potassium (K) atoms.

On the right - hand side, there are 2 K atoms in 2KBr. So, we put a 2 in front of K on the left - hand side to balance K atoms: \(2K+Br_2
ightarrow2KBr\).

Step2: Check bromine (Br) atoms.

On the left - hand side, in \(Br_2\), there are 2 Br atoms. On the right - hand side, in 2KBr, there are also 2 Br atoms. So the equation is balanced.

Answer:

\(2K + 1Br_2
ightarrow2KBr\)