Объяснение:
m(H2)=n•M= (N/Na)•M= (6.02•10²³/6.02•10²³)•2•1= 1•2•1= 2г
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Объяснение:
m(H2)=n•M= (N/Na)•M= (6.02•10²³/6.02•10²³)•2•1= 1•2•1= 2г