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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.
Examples of Reversible Chemical Reactions. An important example of a reversible reaction is something called the Haber process. This is where nitrogen and hydrogen react together to form ammonia gas. The chemical reaction for the process looks like this: