Question

what causes the acidity of acids????????...........!​

Answer 1

Answer:

On the other hand, substances such as hydrochloric acid, HCl, are held together by polar ionic bonds and when placed into water the hydrogen will break away to form hydrogen ions, making the liquid acidic. HCl therefore has a very low pH and is a very strong acid. Weak acids, with pH 5 or 6 are slightly more complex.

Explanation:

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Answer 2

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In order to be acidic then,a suubstance must contain hydrogen in form that can be released into water.