6. How many molecules are in 2.7 moles of carbon dioxide

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

How do dying stars contribute to the formation of planets