What does molarity mean? a) The amount of solute (moles) in any quantity of solution; it is irrelevant how many liters of solution there are

b) The amount of solute (moles) in one liter of solution

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

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.