1.) What does a coefficient represent in a chemical formula? 2.) How do you use the coefficient to calculate the number of atoms in each molecule
3.) How many total atoms are in this compound 3C H O
6 12 6
im offering alot of points, please help me

1.) can represent either the relative number of molecules, or the relative number of moles  

2.)MULTIPLY all the SUBSCRIPTS in the molecule by the COEFFICIENT.

i dont know the last one

Explanation:

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.