Aluminum chloride and cesium undergo a single replacement reaction. what is the correct chemical equation for this reaction?
a. alcl3 + 3cs yields no reaction
b. alcl2 + 2cs yields 2cscl + al
c. alcl3 + 3cs yields 3cscl + al
d. 2alcl3 + 6cs yields 2alcs3 + 3cl2

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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.

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?