An oxide of metal 'X' with valency 2 reacts with both acid HCl as well as base NaOH to produce salt and water . (a) What is the name given to such an oxide and write the name of the salts formed in each case. (b) Identify the metal 'X' and give the formula of its oxide. (c) Write another metal with valency 3 which shows similar reaction.
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Trees also cool the air by a process known as 'transpiration cooling'. As trees release water into the atmosphere from their leaves via transpiration, the surrounding air is cooled as water goes from liquid to a vapor. ... The water that is released in its gas vapor form has a cooling effect on the surrounding air.
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