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Question
Which statement is true regarding a chemical reaction?(1 point)
Responses
The total number of atoms does not change, so mass is conserved in the reaction.
The total number of atoms does not change, so mass is conserved in the reaction.
The total number of atoms changes, so mass is conserved in the reaction.
The total number of atoms changes, so mass is conserved in the reaction.
Even if the total number of atoms changes, mass may not be conserved in the reaction.
Even if the total number of atoms changes, mass may not be conserved in the reaction.
Even if the total number of atoms does not change, mass may not be conserved in the reaction.
Even if the total number of atoms does not change, mass may not be conserved in the reaction.
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1 answer
The true statement regarding a chemical reaction is:
The total number of atoms does not change, so mass is conserved in the reaction.
In a chemical reaction, the number of atoms of each element remains the same before and after the reaction, which means that mass is also conserved according to the law of conservation of mass.
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