12. How many grams of O2 are required to produce 73.8 grams of ZnO?
2Zn+02 → 2Zno

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Identify a specific example for each type of technology

Kelly has come up with an explanation for why her sister is sometimes in a good mood and other times in a bad mood. she speculates that it is based on the hours of sleep her sister got the previous night. this explanation for her sister's behaviors is an example of a(n)