Which term refers to a negative ion made of oxygen and hydrogen?

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Multiple Choice

Which term refers to a negative ion made of oxygen and hydrogen?

Explanation:
A negative ion made of oxygen and hydrogen is the hydroxide ion, OH-. It consists of one oxygen atom bonded to one hydrogen atom and carries a negative charge, making it an anion. Hydrogen ion H+ is just a bare proton with no oxygen. A salt is a compound composed of positively and negatively charged ions, not a single ion, and an acid is a substance that increases H+ in solution, not a negative ion of oxygen and hydrogen. Hydroxide (OH-) is the correct term.

A negative ion made of oxygen and hydrogen is the hydroxide ion, OH-. It consists of one oxygen atom bonded to one hydrogen atom and carries a negative charge, making it an anion. Hydrogen ion H+ is just a bare proton with no oxygen. A salt is a compound composed of positively and negatively charged ions, not a single ion, and an acid is a substance that increases H+ in solution, not a negative ion of oxygen and hydrogen. Hydroxide (OH-) is the correct term.

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