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Subjects
Science CBSE Homework Assignments
Class 9
Atoms and molecules
Writing chemical formulae

2. Chemical formulae

Task:

2 m.

1. The formula of steam is

\(CO_2\)
\(CH_4\)
\(CO\)
\(H_2O\)

2. 1 amu is equal to the mass of

1 g of \(H_2\)
1/12th of C-12 atom
1/14th of O-16 atom
\(1.66\) × \(10^2{^3}\) kg

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