acids and alkalis
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Last updated 6:58 PM on 5/22/25
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5 Terms
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difference between them
Acids taste more acidic, while alkalis taste more bitter
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Litmus paper
acid= blue paper turns red, alkali= red paper turns blue
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ph scale
when you add universal indicater to the substance it will change colour, 1-3 strong acid, 4-6 weak acid. 7 neutral, 8-10 weak alkili 11-14 strong alkili
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Neutralisation
it is where acid and alkili cancel each other out, ph7, Acid +alkali = water + a salt
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reactivity of metal
metal + acid = a salt + hydrogen, the chemicals that we start with are called reactants and the result is products. e.g magnesium + hydrochloric acid= magnesium cholride + a salt
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