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Hi everyone, hemorrhoid also known as piles is very much painful and this is caused when tissues gets enlarge, or it becomes weak etc. The tissues gets swollen that contain veins and forms hemorrhoid. This is very much critical situation as the pain is not bearable and it should be cured as soon as possible.
A reversible reaction is a reaction where the reactants form products, which react together to give the reactants back. A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B. This is distinct from reversible process in thermodynamics. Weak acids and bases undertake reversible reactions. For example, carbonic acid: H2CO3 (l) + H2O(l) â HCOâ3 (aq) + H3O+(aq).