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SAT Chemistry

Category - Multiple Choice

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Which of the following is the correct molecular formula for the hydride ion?

H^-
H⁺
H₃0⁺
H₂+
HO^-

Explanation

Answer: H^-

The “-ide” ending of hydride indicates that the species is an anion. Moreover, the name indicates that only hydrogen is present. Thus, hydride is H^-.

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