I think the answer that you are looking for is B but im not a 100% sure
A conjugate acid is a conjugate base with hydrogen ions attached to it. In this case, the conjugate base is the carbonate ion, CO₃⁻². This ion can have two hydrogen ions, so the conjugate acid is:
H₂CO₃
This compound is known as carbonic acid.
Answer:
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Explanation:
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Oxygen is Earth's most abundant element by volume in Earth's Orbit
