what is acid ? write it's two properties
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Acids are chemical substances which are sour in taste. It turns blue litmus red.
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An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes chemical reactions (acid catalysis)
Two properties of acid :- Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and anion in water. The higher the concentration of hydrogen ions produced by an acid, the higher its acidity and the lower the pH of the solution. Properties of acids are: Acids change the colour of litmus from blue to red.
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