Question

Matter Interactions Online Practice
Complete this assessment to review what you’ve learned. It will not count toward your grade.
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Question
How many atoms are represented in the formula Na2HPO4?(1 point)
Responses

eight
eight

seven
seven

six
six

four

Answer 1

To determine the number of atoms in the formula Na2HPO4, we can break it down:

- Na2 means there are 2 sodium (Na) atoms.
- H means there is 1 hydrogen (H) atom.
- P means there is 1 phosphorus (P) atom.
- O4 means there are 4 oxygen (O) atoms.

Now, we can add them up:
- 2 (from Na) + 1 (from H) + 1 (from P) + 4 (from O) = 8 atoms.

So, the correct response is **eight**.