Answer :

aprilbrown05

Answer:

CO2 contains 1 atom of carbon and 2 atoms of oxygen. 1+2=3

Explanation:

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6338081

Answer: Exactly 12 grams of pure carbon-12 powder is known as one mole

Explanation:

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023).