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What is the number of protons in an atom also called?

The atomic number.

Answered by Grace M. • Chemistry tutor

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What is an acid?

Draw a dot and cross diagram to show HCl structure

How do you test for alkenes and alkanes?

A chemist needs to neutralise aqueous hydrochloric acid solution (currently pH 1) to pH 7 or higher, so it can be safely disposed of. They have access to solid NaCl, NaBr and Na2CO3.

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