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List the two type of transporst that the cell in orde to transport molecules acroos the membrane
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Which statement describes both homogeneous mixtures and heterogeneous mixtures?
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Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?
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Which of the following metal react slowly...
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