1.n(NaNO3) = 4 моль
m(NaNO3) = ?
2.m(CO2) = 2,2 г.
n(CO2) = ?
N(CO2) = ?
3.m(SO2) = 6,4 г.
W(S) = ?*
W(O) = ?*
*записать в процентах
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