Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule and a partially _________ charged atom of another
A. polar covalent; negatively
B. nonpolar covalent; negatively
C. nonpolar covalent; positively
D. polar covalent; positively
E. ionic; positively
A
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A grandmother kissed the scraped knee of her grandchild. "It develops nature's bandage," she told the child. Which skin feature is she referring to?
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