Question
(g) Manganese dioxide does not appear in the chemical equation for this reaction. Which is a correct statement about manganese dioxide in this reaction? Tick (surd ) one box. Manganese dioxide increases the activation energy in this square reaction. Manganese dioxide is a catalyst in this reaction. square Manganese dioxide is used up during this reaction. square Manganese dioxide reduces the rate of this reaction. square politician
Answer
4.7
(282 Votes)
Keira
Elite · Tutor for 8 years
Answer
Manganese dioxide is a catalyst in this reaction.
Explanation
## Step 1: Understand the role of manganese dioxide in the reaction. The question states that manganese dioxide does not appear in the chemical equation for this reaction. This suggests that manganese dioxide is not a reactant or a product in the reaction.## Step 2: Evaluate each statement given in the question. - The first statement suggests that manganese dioxide increases the activation energy in this reaction. This is not likely to be correct because substances that increase the activation energy typically slow down the reaction, but the question does not provide any information to suggest that the reaction is slowed down.- The second statement suggests that manganese dioxide is a catalyst in this reaction. A catalyst is a substance that speeds up a reaction by providing an alternative reaction pathway with a lower activation energy. The catalyst is not consumed in the reaction, which is consistent with the information given in the question.- The third statement suggests that manganese dioxide is used up during this reaction. This is not likely to be correct because the question states that manganese dioxide does not appear in the chemical equation for the reaction, which suggests that it is not consumed in the reaction.- The fourth statement suggests that manganese dioxide reduces the rate of this reaction. This is not likely to be correct because the question does not provide any information to suggest that the reaction is slowed down.## Step 3: Based on the analysis in Step 2, the most likely correct statement is that manganese dioxide is a catalyst in this reaction.