Question 5 • CMS 2026-2027 Biology CREDIT RECOVERY
Water molecules are polar: oxygen carries a slight negative charge, while the hydrogen atoms carry slight positive charges. The positive hydrogen of one water molecule is attracted to the negative oxygen of another, forming a hydrogen bond. Being large or having weak atomic bonds does not explain this attraction; adhesion is a result of attractions between different substances, not the reason water molecules hydrogen-bond to each other.
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