Question

Which of the following are elements? (Select all that apply.)

Na

KCl

H2O

C

Answer 1

The following are elements from your list:

- **Na** (Sodium)
- **C** (Carbon)

The other options are not elements:

- **KCl** (Potassium Chloride) is a compound.
- **H2O** (Water) is also a compound.