The second law of thermodynamics assures us that:

perpetual motion is possible

all matter left to itself moves toward disorder

electrons should orbit indefinitely

none of these

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

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.

What was bohr’s contribution to the planetary model