Question

4 cacl₂
calcium chloride
how many total atoms are in 4 cacl₂?
4 atoms
3 atoms
2 atoms
12 atoms

Explanation:

Step1: Analyze the formula

In \(CaCl_2\), there is 1 Ca atom and 2 Cl atoms. So in one \(CaCl_2\) unit, the total number of atoms is \(1 + 2=3\).

Step2: Consider the coefficient

The coefficient is 4. So the total number of atoms in \(4CaCl_2\) is \(4\times3 = 12\).

Answer:

12 Atoms