The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.
Answer:
2.57 e-9
Explanation:
The formula is H3O=10^-Ph
10^-8.59=2.57 e-9
Valency- it means the combing capacity if an element.
<span> radical- it is an atom, molecule, or ion that has unpaired valence electrons or an open electron shell.
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Co2 = two covalent bonds
ccl4 = 4 covalent bonds
Lih = covalent bond
