Explanation:
To balance the equation, we need to have the same number of atoms of each element on both sides of the equation.
So in this case:
4KCIO3 → 3KCIO4 + KCI
where:
reactants:
K - 4
Cl - 4
O - 12
Products:
K - 4
Cl - 4
O - 12
Potassium chloride is KCl and potassium chlorate is KClO3. The balanced reaction equation tells us that:
4 mol of KClO3 produces 1 mol of KCl, we know it because of the equation:
4 KCIO3 → 3 KCIO4 + 1 KCI
So we can do a rule of 3 to find out the quantity in moles produced when we have 3.90 moles of KClO3:
4 mol KClO3 --- 1 mol KCl
3.9 moles KClO3 --- x
4x = 1*3.9
x = 3.9/4
x = 0.975 moles
Answer: 4 KCIO3 → 3 KCIO4 + KCI and 0.975 moles.
