Answers LA-Chemistry A Studying for TestsQuestion 1

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Question 1 • LA-Chemistry A

Potassium permanganate (KMnO4) reacts with hydrochloric acid (HCl) to form potassium chloride (KCl), manganese chloride (MnCl2), water (H2O), and chlorine gas (Cl2). The balanced chemical equation is 2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 8H2O + 5Cl2. Select the correct ratios of each of the following substances.KMnO4:KCl =

Answer

A

2:2

B

1:2

C

2:1

Explanation

Use the coefficients in the balanced equation: 2KMnO₄ + 16HCl → 2KCl + 2MnCl₂ + 8H₂O + 5Cl₂. The coefficient of KMnO₄ is 2, and the coefficient of KCl is also 2, so the ratio KMnO₄:KCl is 2:2. The correct choice is 2:2.

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