Question

plz help me

Answer 1

Which statement is a correct expression of the Law of Conservation of Mass?

A.
The total mass is unpredictable in a chemical reaction.

B.
The total mass remains the same during a chemical reaction.

C.
The total mass decreases during a chemical reaction.

D.
The total mass increases in a chemical reaction.

Answer 2

@zepdrix

Answer 3

conservation means it never changes
so conservation mass will mean that the mass in a system will remain the same in a chemical reaction
the mass of a molecule is the sum of the individual constituents that comprises it

Answer 4

can u help with more