Cindy pours cool milk into a hot bowl of oatmeal and then stirs it with a room-temnperature spoon. Which substance will have heat flow from it to the other substances?
O the milk
O the spoon
O the oatmeal
O the surrounding air

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

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 is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?