Velocity does need a direction so which type of quantity is it?
a. vector
b. scalar
c. normal
d. special

Consider this initial-rate data at a certain temperature for the reaction described by

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.

How do you know when a chemical reaction has occurred