Avogadro's number was calculated by determining the number of atoms in
a. 12.00 g of carbon-12
b. 14.00 g of carbon-12
c. 12.00 g of oxygen
d. 14.00 g of oxygen

Answer : The correct option is A.

Explanation :

One mole of substance means the amount of substance that contains as many particles in pure substance. So, one mole contains of particles. And this is also known as Avogadro's number.

Molar mass of carbon = 12 g/mole

Molar mass of oxygen = 16 g/mole

Moles of carbon-12 =

Moles of carbon-12 =

Moles of oxygen =

Moles of oxygen =

Therefore, the only option A which contain 1 mole.

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation: