Question

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the chemical formula of calcicom phosphate
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Answer 1

Sorry dear but pls explain what is here to get a better ans. but still

Formula of phosphate=PO4. Valency of phosphate=3. By interchange of valency: Formula of calcium phosphate=Ca3(PO4)2.

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Answer 2

Calcium = Ca

Valency = 2

Phosphate = PO4

Valency = 3

Write the symbol and valency of calcium and phosphate as shown below :

Ca Symbol PO4

Valency 3 2

Now , criss cross the chemical formula of calcium with the valency of phosphate and , also the chemical formula of phosphate with calcium , we get the chemical formula as :

Ca3 ( PO4 ) 2

We are putting here brackets , as there are more than 2 ions in the compound .