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Chemistry, 15.01.2020 21:31 jenniferalvarez360
What is the valency ? write the valencies of the calcium, iron, hydroxyh ,nitrate
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Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
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What is the valency ? write the valencies of the calcium, iron, hydroxyh ,nitrate...
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