Question

how many atoms of oxygen in the chemical formula 2ca(clo2)2?

Explanation:

Step1: Analyze the formula

The formula is \(2Ca(ClO_2)_2\). First, find the number of oxygen atoms in one \(Ca(ClO_2)_2\) unit. In \(ClO_2\), there are 2 oxygen atoms. And there are 2 \(ClO_2\) groups in \(Ca(ClO_2)_2\). So in one \(Ca(ClO_2)_2\), the number of oxygen atoms is \(2\times2 = 4\).

Step2: Consider the coefficient

The coefficient of \(Ca(ClO_2)_2\) is 2. So the total number of oxygen atoms is \(2\times4\).

Answer:

8