acids and alkalis

what makes an acid an acid?

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  1. By definition, the property of having more Hydromonium ions that hydroxide ions makes the compound acidic.

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  2. hi i would like to ask 2 questions:

    1.why do we pickle some foods? how does it work?

    2.what equipment should we use to gring red cabbage to make a indicator?

    thank you

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  3. it becomes an acid due to which colour it turns when adding universal indicator

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  4. i.e 1-6 acid
    7 neutral
    and numbers after that are alkalis

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