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Ahat [919]
3 years ago
15

A catalyst is ____.

Chemistry
2 answers:
vagabundo [1.1K]3 years ago
7 0
It is not used up in a reaction. This is because a catalyst is added to a reaction in order to speed it up, but only for that—it doesn’t react with anything, so it isn’t a product nor reactant of any reaction
Anna35 [415]3 years ago
6 0

Not used up in reaction i took the test

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Answer:

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When they reach the soil, eventually, the water will  evaporate or will be absorbed by soil, so the chemicals that are left behind, will reach the surface of Earth.

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3 years ago
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Ulleksa [173]

Explanation:

As I_{2} is a covalent compound because it is made up by the combination of two non-metal atoms. Atomic number of an iodine atom is 53 and it contains 7 valence electrons as it belongs to group 17 of the periodic table.

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