問題詳情

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.

參考答案

答案:D
難度:適中0.666667
統計:A(1),B(0),C(0),D(4),E(0)

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