Hydrogen bonds cause what to expand when it freezes?\nOptions:\n- (A) salt\n- (B) mercury\n- (C) NaCl\n- (D) lake\n- (E) H20\n- (F) rain\n- (G) h2o\n- (H) oxygen Think carefully first, then make a decision. My thoughts:
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Hydrogen bonds cause water to expand when it freezes. Water is everywhere H20. Hydrogen bonds cause H20 to expand when it freezes. So the answer is (E).
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