Why can't all mixtures be classified as solutions?
a. not all mixtures are homogeneous.
b. not all mixtures have solutes and solvents.
c. mixtures are made of only one substance.
d. not all mixtures are heterogeneous.

Based on the equation and the information in the table, what is the enthalpy of the reaction?

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

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.