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Q12: In S<sup>-2</sup> the sulfur anion owns 16
Q69: H<sup>+</sup> has one electron.
Q74: Should an oxygen atom (O)gain two electrons,
Q74: Which of the following is a binary
Q79: The oxidation state of metals is almost
Q79: Which of the following -ous ending cations
Q94: What is the chemical formula of the
Q118: The number of valence electrons that belong
Q128: The bicarbonate, bisulfate and dihydrogen phosphate anions
Q174: Elements that belong to the same group