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What fraction of polystyrene is submerged when it floats in freshwater, given the density of water at 0°c is very close to 1000 kg/m3?.
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Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
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Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
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Answer immediately when two or more atoms of the same element are in a chemical bond, the substance is called a(n) a. compound b. molecule c. nucleus
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What fraction of polystyrene is submerged when it floats in freshwater, given the density of water a...