Balance the reaction then solve the problem: H, +N – NH, What mass, in grams, ofNH, is produced when 77 g of N, is consumed?
please help asap

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

The excretory system,need answers for all: )