Which of the following has the most h+ ions in its solution?
a. hydrochloric acid solution with a ph of 1.
b. carbonic acid solution with a ph of 4.
c. ethanoic acid solution with a ph of 6.5
d. ammonia solution with a ph of 12.

How many atoms are there in 5.70 mol of mg

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 these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction