210 grams of copper pellets are removed from 200ºC oven and immediately dropped into 350 mL of water in an insulated cup. The temperature of water raises 39ºC then remains at that temperature. Calculate the following:  a) Mass of water in kilograms b) The heat energy removed from copper pellets in joules. (Sp.Heat of copper is 385 J/KgºC) c) The initial temperature of water in degree celsius. (Sp.Heat of water = 4186 J/kg°C)

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Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.