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barxatty [35]
2 years ago
9

What effect does a catalyst have on a reaccion rate an the products formed in a reaccion

Chemistry
1 answer:
elena-s [515]2 years ago
8 0
A catalyst will speed up the activation energy and therefore speed up the reaction. The products will form fast because of this.
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Identify the following example as a physical or chemical change. Moisture in the air forms beads of water on a cold window pane.
denis23 [38]

<u>Answer:</u> The given example is a physical change.

<u>Explanation:</u>

A chemical change is defined as the change in which chemical composition of a substance changes and results in the formation of a new substance. These are usually irreversible process.

A physical change is defined as the change in which only the shape and size of the substance changes and no new substance is formed. Only phase change occurs in these processes. These are usually considered as a reversible change.

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Hence, the given example is a physical change.

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