Help please it’s present yield and please leave an explanation too

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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.

Is a chemical message sent by another individual.