Question

Total numbers and kind of elements of 2O2

Answer 1

The chemical formula "2O2" indicates that there are two molecules of dioxygen (O2).

Here's the breakdown:

- **Total number of molecules**: 2 (since there are 2 O2 molecules)
- **Total number of oxygen atoms**: Since each molecule of O2 contains 2 oxygen atoms, for 2 O2 molecules, the total number of oxygen atoms is \(2 \times 2 = 4\).

So, in summary:

- Total kind of elements: 1 (oxygen, O)
- Total number of oxygen atoms: 4