Question

if the valency of an element e is 3. then deduce the chemical formula for nitrate sulfide and phosphate
please answer plz it's urgent​

Answer 1

Answer:

The chemical formula of calcium phosphate is Ca

3

(PO

4

)

2

. Calcium ion has +2 charge and phosphate ion has −3 charge. Electrical neutrality will be maintained when three Ca

2+

ions will combine with two PO

4

3−

ions.

[3×(+2)]+[2×(−3)]=6−6=0

hope it help

marke me as brainlist

Answer 2

THE CHEMICAL FORMULA OF NITRATE, SULFIDE, AND PHOSPHATE OF 'E' ARE  $E(NO_{3})_{3},E_{2} S_{3} ,EPO_{4}$  RESPECTIVELY.

Explanation:

• E has a valence of 3. The valence of nitrate is -1, valence of sulfide is -2, and that of phosphate is -3.
• While writing chemical formulas, the valence cross multiplies.
• It means that E has a valence of 3 and $NO_{3} ^{-}$ has -1 valence, so they will cross multiply and we will get $E(NO_{3})_{3}$.
• The sulfide of E will have a formula of $E_{2} S_{3}$.
• The phosphate of E will have a formula of $EPO_{4}$.