Question

how many atoms of oxygen (o) are in the compound: *
citric
acid

1 atom
6 atoms
7 atoms
8 atoms

Explanation:

Step1: Analyze the chemical formula

The chemical formula of citric acid is \(C_6H_8O_7\).

Step2: Identify the oxygen part

In the formula \(C_6H_8O_7\), the sub - script next to \(O\) (oxygen) is 7. This sub - script indicates the number of oxygen atoms in one molecule of the compound. So, there are 7 oxygen atoms.

Answer:

C. 7 atoms