Question

1.Calculate the relative molecular masses of 1. C2H60. 2. CaCO3 (given atomic masses of C=12, H=1

O=16 Ca= 40 )​

Answer 1

Answer:

from which which class it is

Answer 2

Answer:

1. (2×12)+(6×1)+(1×16)= 24+6+16 = 30+16 = 46 u

2.(1×40)+(1×12)+(3×16)= 40+12+48= 40+60 = 100 u

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