How many grams of rust can be formed from 7.8 X 10^23 formula units of rust, Fe2O3?

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

On a distance vs time graph the line of an object at rest is a

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat