In the reaction of aluminum metal with hydrochloric acid, if 5.50 g of aluminum is reacted with excess acid at 25 c and 0.975 atm, how many liters of hydrogen gas would be produced? 2al(s) + 6hcl(aq) → 2alcl3(aq) + 3h2(g)

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

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.

Which of two curves exhibits exponential growth