Which of the following must be the same before and after a chemical reaction? A) The sum of the masses of all substances involved.

Question

Which of the following must be the same before and after a chemical reaction?
A) The sum of the masses of all substances involved.

B) The number of molecules of all substances involved.

C) The number of atoms of each type involved.

D) Both (a) and (c) must be the same.

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Elliana 3 months 2022-02-23T04:42:34+00:00 2 Answers 0 views 0

Answers ( )

    0
    2022-02-23T04:44:05+00:00

    I THINK THAT THE ANSWER IS GOING TO BE (D)

    0
    2022-02-23T04:44:11+00:00

    I believe the answer would be The sum of the masses of all substances involved and the number of atoms of each type involved. 

    So D. both a and c

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