N2 + 3H2 → 2NH3 How many grams NH3 can be produced from 7.23 mol N2 (assuming H2
is in excess)?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

What are the first three quantum numbers for the electrons located in subshell 2s?