Question

what is the product of calcium reacting with hydrochloric acid?
select all that apply.
□ h₂
□ cacl₂
□ h
□ co₂
□ h₂o

Explanation:

Step1: Recall the reaction of metals with acids

Metals react with acids to form a salt and hydrogen gas. The general equation is: Metal + Acid → Salt + Hydrogen gas.

Step2: Identify the reactants

Here, the metal is calcium (Ca) and the acid is hydrochloric acid (HCl).

Step3: Write the chemical reaction

The reaction is: \( \text{Ca} + 2\text{HCl}
ightarrow \text{CaCl}_2 + \text{H}_2 \uparrow \)

Step4: Determine the products

From the reaction, the products are calcium chloride (\( \text{CaCl}_2 \)) and hydrogen gas (\( \text{H}_2 \)). The other options (H, \( \text{CO}_2 \), \( \text{H}_2\text{O} \)) are not products of this reaction. H is a single atom, not the product (hydrogen gas is \( \text{H}_2 \)), \( \text{CO}_2 \) would be a product of a reaction with a carbonate, and \( \text{H}_2\text{O} \) is not formed here.

Answer:

A. \( \text{H}_2 \), B. \( \text{CaCl}_2 \)