Объяснение:
m(Ca)= m(CaH2)•w(Ca)= 20•0.952= 19.04г
m(Н)= m(CaH2)•w(Н)= 20•0.048= 0.96г
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Объяснение:
m(Ca)= m(CaH2)•w(Ca)= 20•0.952= 19.04г
m(Н)= m(CaH2)•w(Н)= 20•0.048= 0.96г