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Neutral atoms with an s2p6 electron configuration in the highest energy level belong to which block of the periodic table?
Titanium, atomic number 22, has the configuration [Ar] 3d2 4s2. To what group does titanium belong?
Nitrogen's electron configuration is 1s2 2s2 2p3. To what group does nitrogen belong?
Which block in the periodic table contains the alkali metals?
The most reactive group of the nonmetals is the
Across a period in the periodic table, atomic radii
Which is the best reason that the atomic radius generally increases with atomic number in each group of elements?
As you move down Group 14 in the periodic table from carbon through lead, atomic radii
The number of valence electrons in Group 1 elements is
The number of valence electrons in Group 17 elements is
The electron configuration of nitrogen is 1s2 2s2 2p3. How many more electrons does nitrogen need to satisfy the octet rule?
According to VSEPR theory, the shape of an AB3 molecule is
Use VSEPR theory to predict the shape of the hydrogen chloride molecule, HCl.
Use VSEPR theory to predict the shape of the carbon tetraiodide molecule, CI4.
Use VSEPR theory to predict the shape of carbon dioxide, CO2.
The reason the boiling point of water (H2O) is higher than the boiling point of hydrogen sulfide (H2S) is partially explained
by
What is the formula for zinc fluoride?
What is the formula for barium hydroxide?
Name the compound Zn3(PO4)2.
Name the compound Fe(NO3)2.
Name the compound SiO2.
Name the compound SO3.
What is the formula for sulfur dichloride?
What is the oxidation number of oxygen in most compounds?
What is the oxidation number of a pure element?
What is the oxidation number of oxygen in H2O2?
What is the oxidation number of sulfur in H2SO4?
What is the formula mass of magnesium chloride, MgCl2?
The molar mass of NO2 is 46.01 g/mol. How many moles of NO2 are present in 114.95 g?
The molar mass of H2O is 18.02 g/mol. How many grams of H2O are present in 0.20 mol?
The molar mass of CS2 is 76.15 g/mol. How many grams of CS2 are present in 10.00 mol?
What is the percentage composition of CO?
A compound contains 64 g of O and 8 g of H. What is the empirical formula for this compound?
A compound's empirical formula is C2H5. If the formula mass is 58 amu, what is the molecular formula?
A compound's empirical formula is N2O5. If the formula mass is 108 amu, what is the molecular formula?
A compound's empirical formula is NO2. If the formula mass is 92 amu, what is the molecular formula?
In the word equation, sodium oxide + water  sodium hydroxide, the formula for
sodium hydroxide is represented by
When the equation Fe3O4 + Al  Al2O3 + Fe is correctly balanced, what is the coefficient of Fe?
Which coefficients correctly balance the formula equation
NH4NO2(s) N2(g) + H2O(l)?
The equation AX  A + X is the general equation for a
The reaction represented by the equation Mg(s) + 2HCl(aq)  H2(g) + MgCl2(aq) is a(type of reaction)
The reaction represented by the equation Cl2(g) + 2KBr(aq)  2KCl(aq) + Br2(l) is a (type of reaction)
An active metal and a halogen react to form a(n)
The formulas for the products of the reaction between sodium hydroxide and sulfuric acid are
In the reaction represented by the equation N2 + 3H2  2NH3, what is the mole ratio of nitrogen to ammonia?
_ 46. In the reaction represented by the equation C + 2H2  CH4, what is the mole ratio of hydrogen to methane?
_ 47. In the reaction represented by the equation N2 + 3H2  2NH3, what is the mole ratio of hydrogen to ammonia?
_ 48. In the equation 2KClO3  2KCl + 3O2, how many moles of oxygen are produced when 3.0 mol of KClO3 decompose
completely?
_ 49. For the reaction represented by the equation C + 2H2  CH4, how many moles of hydrogen are required to produce 10 mol
of methane, CH4?
_ 50. For the reaction represented by the equation 2H2 + O2 2H2O, how many moles of water can be produced from 6.0 mol of
oxygen?
_ 51. For the reaction represented by the equation 2H2 + O2  2H2O, how many grams of water are produced from 6.00 mol of
hydrogen?
_ 52. For the reaction represented by the equation 2Na + 2H2O  2NaOH + H2, how many grams of sodium hydroxide are
produced from 3.0 mol of sodium with an excess of water?
_ 53. For the reaction represented by the equation 2Na + Cl2  2NaCl, how many grams of chlorine gas are required to react
completely with 2.00 mol of sodium?
_ 54. For the reaction represented by the equation Cl2 + 2KBr  2KCl + Br2, how many moles of potassium chloride are produced
from 119 g of potassium bromide?
_ 55. A pressure of 745 mm Hg equals
_ 56. Convert the pressure 0.75 atm to mm Hg.
_ 57. Convert the pressure 2.50 atm to kPa.
_ 58. Standard temperature is exactly
_ 59. Standard pressure is the pressure exerted by a column of mercury exactly
_ 60. The volume of a gas is 400.0 mL when the pressure is 1.00 atm. At the same temperature, what is the pressure at which the
volume of the gas is 2.0 L?
_ 61. If 0.5 L of O2(g) reacts with H2 to produce 1 L of H2O(g), what is the volume of H2O(g) obtained from 1 L of O2(g)?
_ 62. What is the number of moles of H2 produced when 23 g of sodium react with water according to the equation 2Na(s) +
2H2O(l)
2NaOH(aq) + H2(g)?
_ 63. What is the process by which molecules of a gas randomly encounter and pass through a small opening in a container?
_ 64. Whose definition of acids and bases emphasizes the role of protons?
_ 65. An electron-pair acceptor is a(n)
_ 66. A species that remains when an acid has lost a proton is a
_ 67. The conjugate of a strong base is a
_ 68. In the reaction represented by the equation
_ 69. In the reaction represented by the equation
acts as a(n)
acts as a(n)
_ 70. The substances produced when KOH(aq) neutralizes HCl(aq) are
71. Given the following equation: NaOH + HCl  NaCl + H2O. Calculate the mass of water produced when
80.0 g of NaOH react with excess HCl.
72. Given the following equation: Na2S + 2 H2O → 2 NaOH + H2S. Calculate the mass of NaOH produced when 78.0 g of Na2S react with excess water.
73. Given the following equation: SO2(g) + CaO(s)  CaSO3(s). Calculate the mass of CaSO3 produced when
128.0 g of SO2 react with excess CaO.
74. How many grams of NaOH are needed to prepare 1.0L of 0.25M NaOH solution?
75. How many mL of concentrated 12.0M solution of HCl are needed to prepare a 1,000 mL a diluted 1.2 M HCl
solution.
SHOW WORK ON A SEPARATE SHEET OF PAPER AND TURN IN BEFORE THE FINAL EXAM.