Ответ:
Mr (SO2)=32+16*2=64
Mr (C2H6)=12*2+1*6=28
Mr (NH3)=14+1*3=17
Mr (NaOH)=23+16+1=40
Mr (Na2O)=23*2+16=62
Mr (Cu(OH)2)=64+2*(16+1)=98
Mr (H2CO3)=1*2+12+16*3=62
Mr (KO2)=39+16*2=71
Mr (Mg(OH)2)=24+2*(16+1)=58
Объяснение:
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Ответ:
Mr (SO2)=32+16*2=64
Mr (C2H6)=12*2+1*6=28
Mr (NH3)=14+1*3=17
Mr (NaOH)=23+16+1=40
Mr (Na2O)=23*2+16=62
Mr (Cu(OH)2)=64+2*(16+1)=98
Mr (H2CO3)=1*2+12+16*3=62
Mr (KO2)=39+16*2=71
Mr (Mg(OH)2)=24+2*(16+1)=58
Объяснение: