Chemistry, 28.07.2019 02:30 itzandrea456

Witch contains more energy warm areas or cold areas?

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Chemistry, 22.06.2019 13:00, jaylanmahone223

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 14:00, JJlover1892

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

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Chemistry, 22.06.2019 16:00, julesperez22

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.