how many atoms of oxygen in the chemical formula 2ca(clo₂)₂?\no 2\no 4\no 6\no 8

Answer

Answer:

D. 8

Explanation:

Step1: Analyze sub - script of oxygen in inner part

In the formula $\text{Ca(ClO}_2)_2$, the sub - script of oxygen in $\text{ClO}_2$ is 2, which means there are 2 oxygen atoms in one $\text{ClO}_2$ group.

Step2: Consider number of $\text{ClO}_2$ groups

There are 2 $\text{ClO}_2$ groups in $\text{Ca(ClO}_2)_2$, so the number of oxygen atoms in $\text{Ca(ClO}_2)_2$ is $2\times2 = 4$.

Step3: Account for coefficient in front

The coefficient 2 in front of $\text{Ca(ClO}_2)_2$ means we multiply the number of oxygen atoms in $\text{Ca(ClO}_2)_2$ by 2. So the total number of oxygen atoms is $4\times2=8$.