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(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?
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Compare and contrast physical changes with chemical changes.
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Chemistry, 22.06.2019 13:00
6. using 3 – 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 – 4 sentences in your explanation.
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Chemistry, 22.06.2019 15:30
The identities of substances are the same before and after which type of change
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que fracción de una muestra de sodio-24 cuya vida dura media es de 15 hora, queda al cabo de dos día...
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