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1. Acids - a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind. Eg. sulfuric, nitric, hydrochloric, and phosphoric acids.
Bases - Base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis). ... Indicator paper is used to determine the pH of a liquid. Eg. sodium, calcium, etc.
Salts - In chemical terms, salts are ionic compounds. To most people, salt refers to table salt, which is sodium chloride. Sodium chloride forms from the ionic bonding of sodium ions and chloride ions. Eg. Ammonium Dichlorate , Magnesium Sulfate, Sodium Bicarbonate.