What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?
3.4 atm
2.1 atm
0.9 atm
1.6 atm

Your answer should have the same number or significant figures as a he starting measurement. 3201 ml =

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.

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?