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A scientist measures the rate of a reaction between two liquids. Then he performs the reaction again, adding solid manganese. The reaction takes place more quickly the second time. The mass of the manganese decreased by 0.45 grams during the reaction. He claims that the manganese acted as a catalyst because it sped up the reaction. Explain what is wrong with the scientists' reasoning.

Respuesta :

A catalyst is a substance that alters the reaction and doesn't involve in the reaction.So if the Manganese was a catalyst the mass would not have decreased,it would just continue aletring the reaction until its used up.
The Manganese is not acting as a catalyst
mickymike92

Manganese is not a catalyst in the reaction but a reactant because of the loss in mass.

What is a catalyst?

A catalyst is a substance which speeds up the rate of a chemical reaction but does not take part in the reaction and remains chemically unchanged at the end of the reaction.

Since the mass of the manganese reduced at the end of the reaction, it took part in the reaction.

Therefore, the manganese is not a catalyst in the reaction but a reactant because of the loss in mass.

Learn more about catalysts at: https://brainly.com/question/13663410

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