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Explain why a sewing needle can float on the surface of water in a glass
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Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?
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Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved
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What two categories of toxins were present in the air at dish,texas as a result of the gas pipelines that pass through the area
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Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?
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Explain why a sewing needle can float on the surface of water in a glass...
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