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Which of the following is a chemical reaction?
a. making a hydrogen bond between a water molecule and a sugar molecule.
b. the melting of ice.
c. changing a carbon atom to a nitrogen atom by radioactive decay.
d. the formation of a covalent bond between two amino acids
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Which of the following is a chemical reaction?
a. making a hydrogen bond between a wat...
a. making a hydrogen bond between a wat...
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