Ответ:
Объяснение:
1) P2S3
Mr(P2S3) = 2 * Mr(P) + 3 * Mr(S) = 62 + 96 = 158
2) N2O
Mr(N2O) = 2 * Mr(N) + Mr(O) = 28 + 16 = 44
3) SiO2
Mr(SiO2) = Mr(Si) + 2 * Mr(O) = 28 + 32 = 60
4) HCl
Mr(HCl) = Mr(H) + Mr(Cl) = 1 + 35.5 = 36.5
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Ответ:
Объяснение:
1) P2S3
Mr(P2S3) = 2 * Mr(P) + 3 * Mr(S) = 62 + 96 = 158
2) N2O
Mr(N2O) = 2 * Mr(N) + Mr(O) = 28 + 16 = 44
3) SiO2
Mr(SiO2) = Mr(Si) + 2 * Mr(O) = 28 + 32 = 60
4) HCl
Mr(HCl) = Mr(H) + Mr(Cl) = 1 + 35.5 = 36.5