QUIZ – EQUILIBRIUM and KINETICS ANSWER SHEET Part I Brief Response Succinctly and completely answer each question. (3 pts each) #1-2 The table below represents the production of 50 mL of CO2 in the reaction of HCl with NaHCO3. Five trials were performed under different conditions as shown. The same mass of NaHCO3 was used in each trial. Trial Particle Size of NaHCO3 Concentration of HCl Temperature of HCl A small 1 M 20 ºC B large 1 M 20 ºC C large 1 M 40 ºC D small 2 M 40 ºC 1. Which trial would produce the fastest reaction? 2. Which two trials could be used to measure the effect of surface area? 3. What is the name for the energy needed to start a chemical reaction? 4. A reaction is most likely to occur when reactant particles collide with 5. Joey put 100 mL of HCl (aq) into four bakers under the conditions shown. If he adds a 2.0-cm strip of magnesium ribbon, then which beaker will have the fastest reaction? Why? 6. Which equilibrium constant indicates the highest concentration of product? Explain. A) K = 1 × 10–1 B) K = 2 × 10–2 C) K = 3 × 10–3 D) K = 4 × 10–4 7. Given the reaction at equilibrium: H2(g) + Br2(g) ⇌ 2 HBr(g). What is the relationship between the rate of the forward reaction and the rate of the reverse reaction? 8. Which is the equilibrium expression for the reaction: 2CO(g) + O2(g) ⇌ 2 CO2(g)? 9. Which a chemical equation that would corresponds to the following equilibrium expression? 2 3 [A] [B] [C] K = 10. Consider: 2H2(g) + O2 (g) ⇌ 2H2O(g) + heat, if the pressure increases due to a decrease in volume, then what is the effect on the concentration of oxygen, [O2? Explain. 11. Given: 2A(g) + 3 B (g) ⇌ A2B3(g) + heat, what change will not effect the concentrations of A, B or A2B3? Why? A) adding more A B) adding a catalyst C) increasing the temperature D) increasing the pressure QUIZ – EQUILIBRIUM and KINETICS ANSWER SHEET 12. Given: N2(g) + O2(g) + energy ⇌ 2NO(g), which change results in a decrease in the amount of NO(g)? Why A) decreasing the pressure B) increasing the concentration of O2 C) decreasing the concentration of N2(g) D) increasing the temperature Part II Extended Response Solve each problem. Neatly display all work, units and significant figures. (45 pt.) 13. Which is the correct equilibrium expression for each reaction: (8 pts) a. 2H2O(g) + 4KO2 (s) ⇌ 4KOH(s) + 3O2(g)? b. CuO (s) + H2 (g) ⇌ Cu (l ) + H2O (g) 14. For the equilibrium system: 2HBr(g) ⇌ Br2(g) + H2(g) the equilibrium constant K, is 6.45 x 10-4. (4 pts) Which side is favored: reactants (left) or products (right)? Explain. 15. N2(g) + 2O2 (g) ⇌ 2NO2(g) 16. 2NBr3 (g) ⇌ N2 (g) + 3Br2 (g) What is the equilibrium constant, K, if a 2.0 L ...

1. QUIZ – EQUILIBRIUM and KINETICS ANSWER SHEET
Part I Brief Response Succinctly and completely answer each
question. (3 pts each)
#1-2 The table below represents the production of 50 mL of
CO2 in the reaction of HCl with NaHCO3. Five trials
were performed under different conditions as shown. The same
mass of NaHCO3 was used in each trial.
Trial Particle Size of NaHCO3 Concentration of HCl
Temperature of HCl
A small 1 M 20 ºC
B large 1 M 20 ºC
C large 1 M 40 ºC
D small 2 M 40 ºC
1. Which trial would produce the fastest reaction?
2. Which two trials could be used to measure the effect of
surface area?
3. What is the name for the energy needed to start a chemical
reaction?
4. A reaction is most likely to occur when reactant particles
collide with

2. 5. Joey put 100 mL of HCl (aq) into four bakers under the
conditions shown. If he adds a 2.0-cm strip of
magnesium ribbon, then which beaker will have the
fastest reaction? Why?
6. Which equilibrium constant indicates the highest
concentration of product? Explain.
A) K = 1 × 10–1 B) K = 2 × 10–2 C) K = 3 × 10–3 D) K =
4 × 10–4
7. Given the reaction at equilibrium: H2(g) + Br2(g) ⇌ 2
HBr(g). What is the relationship between the rate of the
forward
reaction and the rate of the reverse reaction?
8. Which is the equilibrium expression for the reaction:
2CO(g) + O2(g) ⇌ 2 CO2(g)?
9. Which a chemical equation that would corresponds to the
following equilibrium expression?
2
3
[A] [B]
[C]

3. K =
10. Consider: 2H2(g) + O2 (g) ⇌ 2H2O(g) + heat, if the
pressure increases due to a decrease in volume, then what is the
effect on the concentration of oxygen, [O2? Explain.
11. Given: 2A(g) + 3 B (g) ⇌ A2B3(g) + heat, what change
will not effect the concentrations of A, B or A2B3? Why?
A) adding more A B) adding a catalyst
C) increasing the temperature D) increasing the pressure
QUIZ – EQUILIBRIUM and KINETICS ANSWER SHEET
12. Given: N2(g) + O2(g) + energy ⇌ 2NO(g), which
change results in a decrease in the amount of NO(g)? Why
A) decreasing the pressure
B) increasing the concentration of O2
C) decreasing the concentration of N2(g)
D) increasing the temperature
Part II Extended Response Solve each problem. Neatly display
all work, units and significant figures. (45 pt.)
13. Which is the correct equilibrium expression for each
reaction: (8 pts)
a. 2H2O(g) + 4KO2 (s) ⇌ 4KOH(s) + 3O2(g)?

4. b. CuO (s) + H2 (g) ⇌ Cu (l ) + H2O (g)
14. For the equilibrium system: 2HBr(g) ⇌ Br2(g) +
H2(g) the equilibrium constant K, is 6.45 x 10-4. (4 pts)
Which side is favored: reactants (left) or products (right)?
Explain.
15. N2(g) + 2O2 (g) ⇌ 2NO2(g) 16. 2NBr3 (g) ⇌
N2 (g) + 3Br2 (g)
What is the equilibrium constant, K, if a 2.0 L flask Determine
the concentration of nitrogen gas, N2, when
with 0.24 mol N2, 0.76 mol O2 and 4.4 mol NO2 is at a 3.0 L
flask contains 0.36 mole of Br2, and
equilibrium? (6 pts) 0.086 mole of NBr3 at equilibrium. K
is 0.0024. (6 pts)

5. 17. For each change, state whether the concentration of oxygen
gas, O2, will increase, decrease or remain unchanged. AND
WHY that change occurs for the equilibrium system: 2H2(g)
+ O2 (g) ⇌ 2H2O(g) + heat. (9 pts)
a. Water is added.
b. Temperature is decreased.
c. Hydrogen, H2, is removed.
18. For each change in experimental conditions,
state whether the number of collisions would increase or
decrease or remain unchanged, and
state whether the reaction rate would increase or decrease or
remain unchanged. (10 pts)
Number of Collisions Reaction Rate

6. a. decrease concentration of a reactant
b. increase temperature for an endothermic reaction
c. increase the volume of a solution
d. decrease the volume of a gas phases reaction
e. a catalyst is added
19. For the reaction: Cl2O(g) + H2O(g) ⇌ 2HOCl(g), the
equilibrium constant, K, is 0.0090.
What is the value of the equilibrium constant, for the reaction:
a. 2HOCl(g) ⇌ Cl2O(g) + H2O(g) ? (6 pts)
a. 2 Cl2O(g) + 2 H2O(g) ⇌ 4HOCl(g)? (6 pts)
20. Is the system, 2NBr3 (g) ⇌ N2 (g) + 3Br2 (g), at
equilibrium when the concentration of nitrogen, N2, is 0.80M,
(5 pts)
bromine, Br2, is 2.4 M, and nitrogen tribromide, NBr3, is
0.0010 M with an equilibrium constant K of 0.0024?
If the reaction is not at equilibrium which way will it shift to
achieve equilibrium? Explain.
Week 1

7. Abortion is one of the most difficult and controversial moral
issues we will consider. Listen to both sides, even if it is
difficult to do. Both sides have important moral insights, even if
ultimately these insights are outweighed by the insights of the
other side. The goal of this discussion is not to convince you to
accept one position over the other, but to help you to understand
both sides. As you consider this difficult issue, it is important
to distinguish two questions:
· Is abortion morally wrong?
· Should abortion be illegal?
Choose one of the questions above and argue both sides with
supporting evidence. Please write your discussion choice in the
title line.
Week 2
· Does a person in need of an organ transplant have a moral
right to obtain that transplant, supposing the availability of the
needed organ?
· How should we choose who gets a transplant, supposing that
there are not enough organs for all who need them?
Week 3
· How do you define privacy?
· Do you believe privacy is a moral right? Why or why not?
· Are there any cases in which public health policy justifies the
violation of the right to privacy?
· Remember to respond to at least two of your classmates’ posts
with feedback on their opinions and ideas.
Week 4
Some consider fair access to health care a moral right, while
others disagree. We have defined the term moral right as "a
privilege to act in some specific, intentional manner or to obtain
some specific benefit because one is a moral agent living in a
community of moral agents under a shared moral standard."
· Is access to health care a moral right?

8. · Why or why not?
Week 5
Stem cells are undifferentiated, primitive cells with the ability
both to multiply and to differentiate into specific kinds of cells.
Stem cells hold the promise of allowing researchers to grow
specialized cells or tissue, which could be used to treat injuries
or disease (e.g., spinal cord injuries, Parkinson’s disease,
Alzheimer’s disease, diabetes, strokes, burns)." (Slevin, 2010)
Choose ONE of the following issues and post to its thread with
supporting evidence. Respond to two peers who wrote about
issues other than the one you chose.
1. Discuss what you feel are the potential benefits of stem cell
research for Alzheimer's patients and their families.
2. Share your perspective on the stem cell debate regarding
donation of surplus embryos to couples for “embryo adoption.”
3. Why is the task of disposing unused frozen human embryos
different from disposing of other medical tissue?
4. Discuss why you think embryonic stem cell research “crosses
a moral boundary.”