Question

Write the formula of the following compound .also name the element present in the (1) water(2) ammonia(3)methane(4) sulphur dioxide(5)ethanol

Answer 1

formula of water is H2O ,
ammonia is NH3 ,
methene is C2H4,
sulphur dioxide is SO2
and ethanol is C2H5OH


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Answer 2

Explanation:

Chemical formulas are the symbolic representation of the elements contained in a compound along with their relative proportions.

1. The chemical formula for water is  $H_2O$ which shows that it is formed by combination of hydrogen and oxygen in the ratio of 2: 1 respectively.

2. The chemical formula for ammonia is  $NH_3$ which shows that it is formed by combination of nitrogen and hydrogen in the ratio of 1: 3 respectively.

3. The chemical formula for methane is  $CH_4$ which shows that it is formed by combination of carbon and hydrogen in the ratio of 1:4 respectively.

4. The chemical formula for sulphur dioxide is  $SO_2$ which shows that it is formed by combination of sulphur and oxygen in the ratio of 1:2 respectively.

5. The chemical formula for ethanol is  $C_2H_5OH$ which shows that it is formed by combination of carbon hydrogen and oxygen in the ratio of 2: 6: 1 respectively.

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