Question

part b four calcium carbonate formula units express your answer as an integer. submit request answer atoms part c three sulfur dioxide molecules

Explanation:

Step1: Recall Calcium Carbonate Formula

Calcium carbonate has the formula \( \text{CaCO}_3 \). In one formula unit of \( \text{CaCO}_3 \), we have 1 Ca atom, 1 C atom, and 3 O atoms. So total atoms per formula unit: \( 1 + 1 + 3 = 5 \) atoms.

Step2: Calculate Atoms in Four Units

To find the number of atoms in four formula units, multiply the number of atoms per formula unit by 4. So \( 5\times4 = 20 \).

Answer:

20