1) what is the coefficient of O2 whent the equation is balance
2) what is the formula for the compound formed between the following pairs of ions
Li and sulfide
Mg and sulfate
Mg and nitrate
3) A compound with the following composition has a molar mass of 60.10g/mol 39.97% carbon, 13.41% hydrogen, 46.62% nitrogen what is the molecular formula?
4) which one is not a strong acid in aqueous solution