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The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.
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At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?
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Atoms or molecules with a net electric charge due to the loss or gain of one or more electrons are....
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