阿摩線上測驗
12. How do the reactants and products compare in a chemical reaction?
(A)The reactants have more mass.
(
(B)The products have more mass.
(C)The products are much simpler substances.
(D)The reactants and products have different physical and chemical properties.
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統計： A(5), B(6), C(8), D(53), E(0) #1342053
統計： A(5), B(6), C(8), D(53), E(0) #1342053
