Application of heat to certain substances causes only physical changes in which no new substance or substances are formed. Application of heat to some substances causes chemical changes, or chemical reactions, in which one or more new substances are formed, with different properties from the original. Heat energy manifests itself as the random jostling motions of molecules in matter; as the temperature of a substance increases, its molecules vibrate and bounce with more energy and at faster speeds.
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As soon as Caesar refused to accept the crown the Caesar was put into the circle of controversy.To which Caesar's enemies said that"He refused it to appease the crowd and show he was not an ambitious leader".
