The pH scale shows how acidic a substance is. Learn what pH means and how it is measured in this KS3 chemistry guide from BBC Bitesize. Neutralisation reactions Acids and alkalis react together in ...
Every chemical reaction involves a change in energy because different substances hold different amounts of energy. During the reaction, bonds inside the substances that are reacting together must be ...
On their own, acidic ingredients often have a tangy, sour flavor. In cooking, acid is often used as a flavor enhancer. A spoonful of lemon juice, a splash of vinegar, even a pinch of citric acid can ...
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