Question

give the formula of compound formed from the following set of element​

Answer 1

Answer:

1. Calcium and fluorine

Symbol Ca F

Charges +2 1−

Formula CaF2

2. Hydrogen and sulphur

Symbol H S

Charges 1+ 2−

Formula H 2 S

3. Nitrogen and hydrogen

Symbol N H

Charges 3− 1+

Formula NH 3

4. Carbon and chlorine

Symbol C Cl

Charges 4+ 1−

Formula CCl 4

5. Sodium and oxygen

Symbol Na O

Charges 1+ 2−

Formula Na 2 O

6. Carbon and oxygen.

Symbol C O

Charges 4+ 2−C 2 O 4 i. e.

Formula CO 2

Answer 2

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