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A lump of solid has a much lower surface area compared to a powdered catalyst. Since most chemical reactions that are catalysed by solid phase catalysts (heterogeneous catalysts) occur on the catalyst surface more surface area = faster reaction.

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Why is the rate of reaction increased when magnesium is powdered rather than in solid form?

The rate of reaction increases when magnesium is in powdered form because it has a larger surface area compared to solid form. This increased surface area allows for more collisions between magnesium atoms and reactant particles, leading to a higher reaction rate.


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limiting reactant


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When two substances react to form products the reactant which is used up is called?

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Yes, sucrose is the reactant.


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Yes, sucrose is the reactant.


What is cake powdered sugar?

There is no "cake powdered sugar". Powdered sugar is made from sugar, which is ground into a powdered form, with a minute amount of corn starch added to prevent it from "caking" or lumping.


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heat it


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Why does surface of a reactant influence the rate of the reaction?

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What mineral is colorless and powdered form bubbles with acid?

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