Question

write the symbols and valency of the following (1) sulphide (2) hydroxide (3) aluminum (4) sulphate (5) calcium ​

Answer 1

Answer:

1) S2 v: -2

2) OH v: -1

3) Al v: +3

4) SO4 v: -2

5) Ca v: +2

Explanation:

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Answer 2

Answer:

1) Sulphide _: symbol - S, valency 2-

2) Hydroxide -: symbol -OH, valency 1-

3) Aluminium -: symbol - Al, valency +3

4) Sulphate -: symbol- So4, valency 2-

5) Calcium -: symbol - Ca, valency +2

Explanation:

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