Question

write the chemical formula of

(i) calcium nitrate
(ii) sodium sulphate
(iii) sodium sulphade​

Answer 1

Answer:

1) Ca(NO3) 2

2) Na2SO4

3) Na2S

Explanation:

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Answer 2

chemical formula

• A chemical formula tells us the number of atoms of each element in a compound.
• It contains the symbols of the atoms of the elements present in the compound as well as how many there are for each element in the form of subscripts.

chemical formula of compounds

1. calcium Nitrate = Ca(NO3)
2. sodium sulphate = Na2 SO4
3. sodium sulfide = Na2S
4. sodium sulfite = Na2 SO3

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