Question

predict the products of the reaction below. that is, complete the right - hand side of the chemical equation. be sure your equation is balanced. hcl + ca(oh)₂→□

Explanation:

Step1: Identify the reaction type

This is an acid - base neutralization reaction. The general form of an acid - base reaction is \( \text{acid}+\text{base}
ightarrow\text{salt}+\text{water} \).

Step2: Determine the products

For \( \text{HCl}\) (hydrochloric acid) and \( \text{Ca(OH)}_2\) (calcium hydroxide), the salt formed will be \( \text{CaCl}_2\) (calcium chloride) and water \( \text{H}_2\text{O}\).

Step3: Balance the equation

• Balance Cl atoms:

On the left - hand side, we have 1 Cl atom from \( \text{HCl}\), and on the right - hand side, we have 2 Cl atoms in \( \text{CaCl}_2\). So, we put a coefficient of 2 in front of \( \text{HCl}\). The equation becomes \( 2\text{HCl}+\text{Ca(OH)}_2
ightarrow\text{CaCl}_2+\text{H}_2\text{O}\).

• Balance H and O atoms:

After putting a coefficient of 2 in front of \( \text{HCl}\), on the left - hand side, we have \( 2 + 2=4\) H atoms and 2 O atoms (from \( \text{Ca(OH)}_2\)). On the right - hand side, in \( \text{CaCl}_2\) there are 0 H and 0 O atoms. In \( \text{H}_2\text{O}\), we have 2 H and 1 O atom. So, we put a coefficient of 2 in front of \( \text{H}_2\text{O}\). The balanced equation is \( 2\text{HCl}+\text{Ca(OH)}_2
ightarrow\text{CaCl}_2 + 2\text{H}_2\text{O}\).

Answer:

\( 2\text{HCl}+\text{Ca(OH)}_2
ightarrow\text{CaCl}_2 + 2\text{H}_2\text{O}\)