Question

Why must chemical equations be balanced? (Choose all that apply.)

Two substances must make a new substance.
All atoms on both sides of an equation must be the same.
All atoms on both sides of an equation must be in equal amounts.
It is needed in order to add coefficients.
It will satisfy the law of conservation of mass.

Answer 1

It will satisfy the law of conservation of mass.

Two substances must make a new substance.

All atoms on both sides of an equation must be the same.

Step-by-step explanation:

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