Elements and Compounds

kclo3

Ammonium sulfate is (NH4)2SO4

Ammonium Chloride

Al2(SO3)3

The chemical formula for aluminum chloride is ALCL3. The number 3 is written below the line as a subscript.

2

(NH4)2CrO4

Ca(OH)2

Ab + xy ---> ay + xb

1

metal hydroxide

3, 2, 2, 1

If your goal is to balance the equation, then yes, you have to chose the coefficients.

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LiOH(aq)

a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+