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stiv31 [10]
3 years ago
13

11 Which substance can not be broken down by a chemical change?

Chemistry
1 answer:
Rus_ich [418]3 years ago
4 0
(2) Arsenic. It is an element and elements are chemically the simplest units and cannot be broken down by any chemical change.
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olga nikolaevna [1]

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The reaction is as shown in the image.

The reaction of A with m-CPBA (meta-perchlorobenzoic acid) followed by aqueous acid H_3O^{+} is shown in the image.

m-CPBA (meta-perchlorobenzoic acid) is a peracid and forms epoxides on reacting with alkenes.

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aleksley [76]
Because at atmospheric pressure the boiling point is below room temperature, just like Oxygen, Nitrogen etc
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