Which compound is a base?
AHNO₃
BCa(OH)₂CORRECT
CH₂SO₄
DNaCl
WAECChemistry
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Why the answer is B, and why the others tempt you.
Ca(OH)₂ produces OH⁻ in solution — a base. The HCl/HNO₃/H₂SO₄ are acids; NaCl is a salt.
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