When 4.5 mol al react with 11.5 mol hci, what is the limiting reactant and how many moles of h2 can be formed?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

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.

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element