asked 16.4k views
5 votes
A chemical equation is balanced by changing or adding

a.
chemical symbols.
c.
numbers in front of molecules.
b.
subscripts after atoms.
d.
reactants in the product.

2 Answers

3 votes

Answer:

a.

chemical symbols.

Step-by-step explanation:

answered
User Sean Newell
by
8.8k points
0 votes
number infront of molecules are the no of moles and they can be varied.
A chemical equation is balanced by changing or adding numbers in front of molecules.
So , c.
numbers in front of molecules. is the correct answer.

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