Download AP Chemistry Final Exam Review Questions Spring/Mrs. Andre 1. A

AP Chemistry Final Exam Review Questions
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Spring/Mrs. Andre
A vapor is which state of matter?
Which of the following CANNOT be classified as a substance?
Which of the following is a heterogeneous mixture?
Which of the following indicates that a chemical change has happened during cooking?
How many significant figures are in the measurement 811.40 grams?
Express the sum of 7.68 m and 5.0 m using the correct number of significant digits.
What is the SI unit of mass?
The nucleus of an atom is ____.
If E is the symbol for an element, which two of the following symbols represent isotopes of the same
element?
What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p?
How are the frequency and wavelength of light related?
Why is the second ionization energy greater than the first ionization energy?
Which of the following elements has the smallest first ionization energy?
Which of the following factors contributes to the increase in ionization energy from left to right across a
period?
How many valence electrons are in a silicon atom?
Which of the following elements can form diatomic molecules held together by triple covalent bonds?
Which of the following covalent bonds is the most polar?
What type of ions have names ending in -ide?
Aluminum is a group 3A metal. Which ion does A1 typically form?
Which element, when combined with fluorine, would most likely form an ionic compound?
Which set of chemical name and chemical formula for the same compound is correct?
Which polyatomic ion forms a neutral compound when combined with a group 1A monatomic ion in a 1:1
ratio?
What is the formula for hydrosulfuric acid?
Select the correct formula for sulfur hexafluoride.
What is the correct formula for calcium dihydrogen phosphate?
26. How many moles of tungsten atoms are in 4.8 10 atoms of tungsten?
27. If 60.2 grams of Hg combines completely with 24.0 grams of Br to form a compound, what is the percent
composition of Hg in the compound?
28. What is the percent composition of chromium in BaCrO ?
29. Chemical equations ____.
30. If you rewrite the following word equation as a balanced chemical equation, what will the coefficient and
symbol for fluorine be?
nitrogen trifluoride
nitrogen fluorine
31. What are the coefficients that will balance the skeleton equation below?
N +H
NH
32. Chemical equations must be balanced to satisfy ____.
33. When the equation KClO (s)
KCl(s) + O (g) is balanced, the coefficient of KClO3 is ____.
34. In a double-replacement reaction, ____.
35. The equation Mg(s)
2HCl(aq)
MgCl (aq)
H g is an example of which type of reaction?
36. How many moles of aluminum are needed to react completely with 1.2 mol of FeO?
2Al(s) + 3FeO(s)  3Fe(s) + Al O (s)
37. At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form
water?
2H (g) + O (g)  2H O(g)
38. Mercury can be obtained by reacting mercury(II) sulfide with calcium oxide. How many grams of calcium
oxide are needed to produce 36.0 g of Hg?
4HgS(s) + 4CaO(s)  4Hg(l) + 3CaS(s) + CaSO4
39. What is the maximum number of grams of PH that can be formed when 6.2 g of phosphorus reacts with 4.0
g of hydrogen to form PH ?
P (g) + 6H (g)
4PH (g)
40. Lead nitrate can be decomposed by heating. What is the percent yield of the decomposition reaction if 9.9 g
Pb(NO ) are heated to give 5.5 g of PbO?
2Pb(NO ) (s)
2PbO(s) + 4NO (g) + O (g)
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According to the kinetic theory, collisions between molecules in a gas ____.
What is the key difference between a liquid and a gas?
Why does the pressure inside a container of gas increase if more gas is added to the container?
What happens to the pressure of a gas inside a container if the temperature of the gas decreases?
What does the ideal gas law allow a scientist to calculate that the other gas laws do not?
At low temperatures and pressures, how does the volume of a real gas compare with the volume of an ideal
gas under the same conditions?
47. How does the surface tension of water compare with the surface tensions of most other liquids?
48. Which of the following compounds is a strong electrolyte?
49. What mass of Na SO is needed to make 2.5 L of 2.0M solution? (Na = 23 g; S = 32 g; O = 16 g)
50. If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution, what is the molarity of the dilute
solution?