Question

Please help me
I'll give 20 points

Answer 1

infer why must you add coefficients to balance an equation instead of changing subscripts in a chemical formula

Step-by-step explanation:

When you change the coefficients, you're only changing the number of molecules of that particular substance. However, when you change the subscripts, you are changing the substance itself, which will make your chemical equation wrong.

Answer 2

Answer: when you change the coefficients, you’re only changing the number of molecules of that Particular substance.