Consider this reaction: H2(g) + Cl2 (g) 2 HCl (g)

How many liters of HCl are produced when 11.2 L of chlorine are reacted with excess hydrogen?

(One mole of any gas occupies 22.4L under certain conditions of temperature and pressure. Assume those conditions for this
question.)

22.4L
56 L
112 L
224 L

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.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

Why is the melting of ice a physical change ?