The two types of scales that are printed on the meter face of an analog vom are
a. single and double scales.
b. polarized and non-polarized scales.
c. positive and negative scales.
d. linear and non-linear scales.

Which one of the following gases is not an important component of soil?

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

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.