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Chemistry, 22.06.2019 06:00
Compare and contrast physical changes with chemical changes.
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6. using 3 β 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 β 4 sentences in your explanation.
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Chemistry, 22.06.2019 18:00
How many moles of oxygen gas are produced from the decomposition of six moles of potassium
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Which of the following is a valid reason why a scientist might reject a scientific theory...
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