When the reaction produces .500g of NO, how many molecules of I2 will be produced?

The answer is celsius 

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

Answers are 1,2,4 its correct on edgenuity.