Question

How many atoms and molecules are there in 7CO2

Answer 1

Answer:

No number means one atom. For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom.

Explanation:

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Answer 2

Answer:

Your answer is

14 atoms of oxygen

7 atoms of carbon

means total is 21 atoms .

Explanation:

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