The formula of metal hydroxides for
A) metal A = A(OH)
B) metal B = B(OH)₂
C) metal C = C(OH)₃
When a metal's oxide combines with water, a hydroxide is created.
The general formula of hydroxide is:
M(OH)ₙ
where n is the valency of metal.
OH has a valency of -1
A) The formula of hydroxide of metal A:
The valency of metal A is 1
This means, here, n = 1
Therefore, the metal hydroxide formula will be = A(OH)
B) The formula of hydroxide of metal B:
The valency of metal B is 2
This means, here, n = 2
Therefore, the metal hydroxide formula will be = B(OH)₂
C) The formula of hydroxide of metal C:
The valency of metal C is 3
This means, here, n = 3
Therefore, the metal hydroxide formula will be = C(OH)₃
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