Question

4) the gram molecular mass of oxygen molecule is
a)16g
b)18g
c)32g
d)17g

5) Chemical formula of rust
a)Feo×H2C
b)FEO4×H2O
C)FEO03×H2O
d)FEO​

Answer 1

Answer:

4)

c) 32 g

5)

C)FEO03×H2O

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Answer 2

Answer:

4) 32 grams

5)Fe2O3 xH2O In the formula of ferric oxide the x represents the no of moles of water molecules absorbed by ferric oxide. ..

Explanation: