1.

11.calculate the molecular masses of H2, ог, Cl2,CO2, CHa, C2H6, C2HA, NH3, CH3OH.

Answer»

H2 - 2O2 -32CL2 - 71CO2 - 44CH4 -16C2H6 - 30C2H4 - 28NH3 - 17CH3OH - 32



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