Given the unbalanced equation: (oh)2 + )2so4 → + + what is the sum of the coefficients when the equation is completely balanced using the smallest whole-number coefficients?

Ca(OH)2 + (NH4)2SO4 → CaSO4 + 2NH3 + 2H2O

That is the balanced equation.

The coefficients represent the amount of moles for that reactant. There is 1 mole of Calcium Hydroxide, 1 mole of Ammonium Sulfate, 1 mole of Calcium Sulfate, 2 moles of Ammonium, and 2 moles of water.

Now add all the coefficients/moles.



The answer is 7 coefficients.

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