The second-order reaction 2nocl→2no+cl2 has the reaction constant k of 8.00×10−8 l/mol/s. if the initial concentration of nocl is 0.231 mol/l, what is the concentration of nocl after 65.0 seconds?

The excretory system,need answers for all: )

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

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.