1. Final Exam Review

2. Number 1 What type of reaction is this? 4Al + 3O2 → 2Al2O3 Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

3. Number 2 What type of reaction in this? C5H12 + 8O2 → 5CO2 + 6H2O
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

4. Number 3 What type of reaction is this? Zn + 2HCl → H2 + ZnCl2
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

5. Number 4 What type of reaction is this? 2KClO3 → 2KCl + 3O2 Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

6. Number 5 What type of reaction is this? 2NaCl + H2SO4 → 2HCl + Na2SO4
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

7. Number 6
What number is added to °C to determine temperature in Kelvin? 1
101.3
273
6.02x1023

8. Number 7 Convert 735mmHg to kPa. 123.89 kPa 101.3 kPa 760 kPa

9. Number 8
What volume will 2.5 moles of oxygen gas occupy at 25°C and a pressure of 0.2atm? L
305.8 L
432.4 L
621.5 L

10. Number 9
If the temperature of a balloon with a volume of 45mL is raised from 22°C to 58°C, what will the new volume be if the pressure remains constant?
50.5 mL
100.1 mL
120.2 mL
167.3 mL

11. Number 10
A student is preparing for a laboratory experiment in which 3 gases will be mixed together. There is a 2L sample of neon gas at a pressure of 2 atm. A 2L sample of carbon dioxide gas at a pressure of 3 atm, and a 2L sample of nitrogen gas at a pressure of 4 atm. All 3 samples are at room temperature. In the experiment the 3 gases will all be transferred to the same rigid 2L container. What is the total pressure the student should expect the gases to exert in the final mixture?
2 atm
6 atm
8 atm
9 atm

12. Number 11 Which letter on the diagram refers to the solid phase? A C BX

13. Number 12 Which letter on the diagram refers to the triple point? A BX Y

14. Number 13
Which letter on the diagram refers to the gas phase? A B C Y

15. Number 14 What is the normal boiling point of this substance? 0°C

16. Number 15
Which type of reaction releases heat?
Endothermic
Exothermic

17. Number 16
Which of the following is true about the reaction pictured in the following diagram?
The reaction is endothermic
The reaction is exothermic
The reactants are higher in energy than the products
No activation energy is required for this reaction

18. Number 17
Which letter on the above diagram indicates the activation energy? A B C

19. Number 18 What does a catalyst do in a reaction?
It slows it down by lowering the activation energy
It slows it down by raising the activation energy
It speeds it up by lowering the activation energy
It speeds it up by raising the activation energy

20. Number 19
Which letter indicates the line where there is a solid, the kinetic energy is changing and the equation q=mCΔT is used? A B C D E

21. Number 20
Which letter indicates the line where there is a liquid, the kinetic energy is changing and the equation is q=mCΔT is used? A B C D E

22. Number 21
Which letter indicates the line where there is a gas, the kinetic energy is changing and the equation q=mCΔT is used? A B C D E

23. Number 22
Which letter indicates the line where melting and freezing occur, the potential energy is changing and the equation q=mHf (Hf = 334 J/g°C) is used? A B C D E

24. Number 23
Which letter indicates the line where boiling and condensation occur, the potential energy is changing and the equation q = mHv (Hv = 2260 J/g°C) is used? A B C D E

25. Number 24
Calculate the amount of heat absorbed to 63.0 grams of ice at 0°C to water at 0°C? (1 step)
1,546 J
3,440 J
6,680 J
21,042 J

26. Number 25
How much heat is released when 10 grams of water is cooled from 75°C to 25°C? (1 step)
1,010 J
-1,010 J
2,090 J
-2,090 J

27. Number 26
How much heat is absorbed when 47 grams of Magnesium is heated from 21°C to 38°C? (1 step)
38.8 J
7.76 J
817.4 J
1,024J

28. Number 27
50.0g of silver metal is heated from 25.0°C to 41.0°C by gaining 192J of heat energy. Calculate the specific heat of silver.
0.12 J/g°C
0.24 J/g°C
0.36 J/g°C
0.48 J/g°C

29. Number 28 How many grams of NH3 can be dissolved in water at 70°C? 6 g

30. Number 29
If there are 35 grams of NH4Cl in 100 grams of water at 50°C, what can you say about the solution?
Unsaturated
Saturated
Supersaturated

31. Number 30
A saturated solution of KClO3 is currently in 100 grams of water at 100 °C. Will it be saturated, unsaturated or supersaturated when it is cooled to 10°C?
Saturated
Unsaturated
Supersaturated

32. Number 31
How much NaNO3 is needed to form a saturated solution at 80°C?
20 g
40 g
60 g
80 g

33. Number 32 Polar substances dissolve _____________________.
Non-polar substances
Polar substances
Any substance
Nothing

34. Number 33
What volume of 12 M HCl is needed to prepare 0.25 L of 0.20 M HCl? L L L L

35. Number 34
What is the molarity of a solution made of 7.5 moles of potassium iodide in 2.8 liters of solution?
0.267 M
0.373 M
3.73 M
38.4 M

36. Number 35 Which of the following is a property of acids?
They feel slippery
They turn phenolphthalein pink
They are sour
They turn litmus paper blue

37. Number 36 Which of the following is a property of bases?
They are clear when tested with phenolphthalein
They are sour
They turn litmus paper red
They feel slippery

38. Number 37 What is the Arrhenius definition of acids?
They are proton (H+) donors
They are proton (H+) acceptors
They are OH- donors
They are OH- acceptors

39. Number 38 What is the Bronsted-Lowry definition of bases?
They are proton (H+) donors
They are proton (H+) acceptors
They are OH- donors
They are OH- acceptors

40. Number 39 In the following reaction, H2S is which of the following?
H2S + H2O → HS- + H3O+
Acid
Base
Conjugate Acid
Conjugate Base

41. Number 40
What is the pH of a solution with a 0.75 M concentration of H+?
0.125
1.24
11.6
13.1

42. Number 41 If a solution has a pH of 3, which of the following is true?
Its acidic
Its basic
Its neutral
There is not enough information

43. Number 42
Which of the following is the same as a Helium nucleus (42He)?
Alpha Particle
Beta Particle
Gamma Ray
Sigma Particle

44. Number 43
Which of the following is the same as a negatively charged electron (0-1e)?
Alpha Particle
Beta Particle
Gamma Ray
Sigma Particle

45. Number 44
Which of the following is radiant energy that can only be stopped by several feet of concrete or several centimeters of lead?
Alpha Particle
Beta Particle
Gamma Ray
Sigma Particle

46. Number 45 Which of the following is the heaviest (most massive)?
Alpha Particle
Beta Particle
Gamma Particle
Sigma Particle

47. Number 46
Which element is formed from the alpha decay of Polonium-218?
Lead
Bismuth
Astatine
Radon

48. Number 47
Which element is formed from the alpha decay of Polonium-218?
Lead
Bismuth
Astatine
Radon