Question

solid potassium reacts with chlorine gas to produce solid potassium chloride . write a balanced chemical equation for this reaction.

Explanation:

Step1: Write the reactants and products

Potassium is $K$, chlorine gas is $Cl_2$, and potassium chloride is $KCl$. The un - balanced equation is $K+Cl_2
ightarrow KCl$.

Step2: Balance the chlorine atoms

There are 2 chlorine atoms on the left - hand side and 1 on the right - hand side. So, we put a 2 in front of $KCl$: $K + Cl_2
ightarrow2KCl$.

Step3: Balance the potassium atoms

Now, there are 2 potassium atoms on the right - hand side and 1 on the left - hand side. So, we put a 2 in front of $K$: $2K+Cl_2
ightarrow2KCl$.

Answer:

$2K + Cl_2
ightarrow2KCl$