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The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?
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Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these
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Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.
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Most atoms in nature are found bonded together to form compounds instead of existing as individual a...
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