1. An ionic compound is created, and heat is released in an exothermic reaction. What is the best explanation for why that reaction was exothermic?
a. Energy was released in creating the bond
b. Cations carry extra heat that is released when they react
c. Anions carry extra heat that is released when they react
d. Energy was required to create the bond
2. Identify the three "must-haves" of collision theory.
a. enough kinetic energy for reaction to occur
b. enough particles for reaction to occur
c. particles collide in the right orientation
d. enough space for particles to maneuver
3. You have 100 mL of a 12M solution of HCl, and you need to dilute it to 1.5M for an experiment. How many liters will your new solution be? Show your work.
Answers: 2
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