Chemistry
The valency of calcium is 2. Write the valencies of other radicals in the following compounds:
(a) CaO
(b) Ca(OH)2
(c) CaCO3
(d) CaCl2
Atomic Structure
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Answer
(a) Oxide (O2-) valency is 2
(b) Hydroxide (OH-) valency is 1
(c) Carbonate (CO32-) valency is 2
(d) Chloride (Cl-) valency is 1
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