Question

why a chemical equation needs to be balanced?

Answer 1

Answer:

Explanation:Remember, chemical reactions follow the law of conservation of mass.

Chemical equations show this conservation, or equality, in terms of

atoms. The same number of atoms of each element must appear on

both sides of a chemical equation. However, simply writing down the

chemical formulas of reactants and products does not always result in

equal numbers of atoms. You have to balance the equation to make

the number of atoms equal on each side of an equation.

Answer 2

Answer:

1. Remember, chemical reactions follow the law of conservation of mass.  
2. Chemical equations show this conversation, or equality, in terms of atoms.
3. The same number of atoms of each element  must appear on both sides of a chemical equations.

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