Equations and Reactions Study Guide |
Multiple Choice |
____ 1. A chemical formula written over the arrow in a chemical equation signifies |
a. | a byproduct. | c. | a catalyst for the reaction. |
b. | the formation of a gas. | d. | an impurity. |
a. | 46 amu | c. | 95.211 amu |
b. | 59.763 amu | d. | 106.354 amu |
a. | 1s2 2s2 2p3 3s2 3p3 3d1. | c. | 1s2 2s2 2p6 3s2 3p1. |
b. | 1s2 2s2 2p6 3s2 2d1. | d. | 1s2 2s2 2p9. |
a. | zinc potassium oxide | c. | zinc phosphate |
b. | trizinc polyoxide | d. | zinc phosphite |
a. | decomposition reaction | c. | |
b. | ionic reaction | d. | synthesis reaction |
a. | 114.09 amu | c. | 128.06 amu |
b. | 118.34 amu | d. | 132.13 amu |
a. | synthesis reaction | c. | decomposition reaction |
b. | d. | combustion reaction |
a. | 0.13 g | c. | 10.00 g |
b. | 7.614 g | d. | 761.4 g |
a. | BaOH | c. | Ba(OH)2 |
b. | BaOH2 | d. | Ba(OH) |
a. | -1 | c. | +1 |
b. | 0 | d. | +2 |
a. | H2O (water) | c. | CO2 (carbon dioxide) |
b. | NH3 (ammonia) | d. | NaCl (table salt) |
a. | Al + Cu2S ® Al2S + Cu | c. | Al + CuSO4 ® AlSO4 + Cu |
b. | d. |
a. | CaCl | c. | CaCl3 |
b. | Ca2Cl | d. | CaCl2 |
a. | 0 | c. | +2 |
b. | +1 | d. | +4 |
a. | AlSO4 | c. | Al2(SO4)3 |
b. | Al2SO4 | d. | Al(SO4)3 |
a. | -2 | c. | 0 |
b. | -1 | d. | +2 |
a. | reactivity list | c. | activity series |
b. | reaction sequence | d. | periodic list |
a. | atoms gain neutrons. | c. | |
b. | nuclei fuse. | d. | atoms lose electrons. |
a. | 1 | c. | 4 |
b. | 2 | d. | 5 |
a. | Cu2+(aq) | c. | S2-(aq) |
b. | Zn2+(aq) | d. | none of the above |
a. | X2Y3 | c. | X2Y5 |
b. | XY4 | d. | X2Y6 |
a. | -4 | c. | +4 |
b. | +1 | d. | +5 |
a. | -1 | c. | +1 |
b. | 0 | d. | 8 |
a. | an oxide | c. | a tertiary compound |
b. | an acid | d. | two elements |
a. | hydrogen gas. | c. | potassium oxide. |
b. | oxygen gas. | d. | salt. |
a. | calcium and oxygen gas. | c. | calcium and a salt. |
b. | calcium hydroxide. | d. | carbon dioxide and water. |
a. | the Bohr model | c. | Rutherford's model |
b. | the quantum model | d. | Planck's theory |
a. | is impossible. |
b. | can be done before 2005. |
c. | can be done easily. |
d. | can be done only with specialized equipment. |
a. | c. | decomposition reaction. | |
b. | synthesis reaction. | d. | combustion reaction. |
a. | c. | laboratory analysis. | |
b. | d. | writing a word equation. |
a. | -1 |
b. | 0 |
c. | +1 |
d. | It is equal to the charge on the metal ion. |
a. | -2 | c. | +2 |
b. | -1 | d. | +4 |
a. | 3 | c. | 6 |
b. | 4 | d. | 9 |
a. | molecular formula. | c. | structural formula. |
b. | ideal formula. | d. | empirical formula. |
a. | 35.45% | c. | 60.7% |
b. | 50% | d. | 64.5% |
a. | occupy the same orbital. | c. | have the same set of quantum numbers. |
b. | d. |
a. | Cu2+(aq) + 2OH-(aq) ® Cu(OH)2(s) |
b. | Na+(aq) + Cl-(aq) ® NaCl(s) |
c. | Cu2+(aq) + 2OH-(aq) + 2Cl-(aq) ® Cu(OH)2(s) + 2Cl-(aq) |
d. |
a. | photon. | c. | excited atom. |
b. | electron. | d. | orbital. |
a. | KClO2 | c. | K2Cl2O3 |
b. | KClO3 | d. | K2Cl2O5 |
a. | 2K+(aq) + S2-(aq) | c. | K2+(aq) + S2-(aq) |
b. | K22+(aq) + S2-(aq) | d. | 2K(aq) + S(aq) |
a. | density. | c. | structural formula. |
b. | formula mass. | d. | crystal lattice. |
a. | 1s2 2s2 2p3 | c. | 1s2 2s3 2p1 |
b. | 1s2 2s3 2p2 | d. | 1s2 2s2 2p2 3s1 |
a. | electrolysis. | c. | ionization. |
b. | conduction. | d. | transformation. |
a. | ZnOH + CH3COOH ® ZnCH3COO + H2O. |
b. | Zn(OH)2 + CH3COOH ® Zn + 2CO2 +3H2O. |
c. | Zn(OH)2 + 2CH3COOH ® Zn(CH3COO)2 + 2H2O. |
d. | Zn(OH)2 + 2CH3COOH ® Zn(CH3COO)2 + H2 + O2. |
a. | metal carbonates. | c. | acids. |
b. | metal hydrides. | d. | metal hydroxides. |
a. | molecular mass | c. | atomic mass |
b. | formula mass | d. | actual mass |
a. | 0 | c. | 2 mol |
b. | 1 mol | d. | 3 mol |
a. | sulfur trioxide | c. | selenium trioxide |
b. | silver trioxide | d. | sodium trioxide |
a. | 2 mol | c. | 5 mol |
b. | 4 mol | d. | 11 mol |
a. | 0. | c. | 10. |
b. | d. | the charge of the ion. |
a. | -8 | c. | 0 |
b. | -2 | d. | +1 |
a. | 2, 1, 2 | c. | 1, 2, 1 |
b. | 1, 2, 3 | d. | 1, 1, 1 |
a. | interference effect. | c. | quantum effect. |
b. | photoelectric effect. | d. | dual effect. |
a. | combustion reaction. | c. | synthesis reaction. |
b. | ionic reaction. | d. |
a. | 20% C, 80% F | c. | 16.8% C, 83.2% F |
b. | 13.6% C, 86.4% F | d. | 81% C, 19% F |
a. | -1 | c. | +1 |
b. | 0 | d. | +2 |
a. | |
b. | 2Ag+(aq) + S2-(aq) ® Ag2S(s) |
c. | Na+(aq) + NO3-(aq) ® NaNO3(s) |
d. |
a. | 12.04 ´ 1023 | c. | 2.00 |
b. | 6.02 ´ 1024 | d. | 0.5 |
a. | salt. | c. | acid. |
b. | hydroxide. | d. | oxide. |
a. | 2H2 + O2 ® 2H2O |
b. | 4H2 + 2O2 ® 4H2O |
c. | H2 + H2 + O2 ® H2O + H2O |
d. | 2H2 + O2 ® H2O |
a. | a precipitate. | c. | a molecule. |
b. | a reactant. | d. | the mass of the product. |
a. | Na2SO4 and H2O. | c. | SI4 and Na2O. |
b. | NaSO4 and H2O. | d. | S + O2 and Na. |
a. | -1 |
b. | 0 |
c. | +1 |
d. |
a. | 0.2 g | c. | 35.9 g |
b. | 3.6 g | d. | 89.9 g |
a. | 0.3998 mol | c. | 2.500 mol |
b. | 1.333 mol | d. | 36.32 mol |
a. | the same mass as the reactants. |
b. | less total bond energy than the reactants. |
c. | more total bond energy than the reactants. |
d. | the same chemical properties as the reactants. |
a. | metallic oxides and chlorine. |
b. | metallic chlorides and oxygen. |
c. | a metal and a compound of chlorine and oxygen. |
d. | a metal, chlorine, and oxygen. |
a. | Mg and BrCl. | c. | MgBrCl. |
b. | MgCl and Br2. | d. | Mg(Cl)2 and Br2. |
a. | jump to a higher energy level. |
b. | fall to a lower energy level. |
c. | absorb energy and jump to a higher energy level. |
d. | absorb energy and fall to a lower energy level. |
a. | C2H2 | c. | CH4 |
b. | CH3 | d. | C4H |
a. | coefficients. | c. | formulas of the products. |
b. | subscripts. | d. | number of products. |
a. | 0. | c. | 8. |
b. | 1. | d. |
a. | sodium tetroxide | c. | nitrous oxide |
b. | dinitrogen tetroxide | d. | binitrogen oxide |
a. | 1 | c. | 3 |
b. | 2 | d. | 4 |
a. | 0.4003 mol | c. | 2.498 mol |
b. | 1.000 mol | d. | 114.95 mol |
a. | S(s) + O2(g) ® SO(g) | c. | 2S(s) + 3O2(g) ® SO3(s) |
b. | S(s) + O2(g) ® SO2(g) | d. | S(s) + 2O2(g) ® SO42-(aq) |
a. | a halogen. | c. | not on the activity series. |
b. | d. | unreactive. |
a. | a subscript | c. | a ratio |
b. | a superscript | d. | a coefficient |
a. | CF4 | c. | CF |
b. | C4F | d. | CF2 |
a. | metal hydroxides. | c. | oxygen. |
b. | hydrochloric acid. | d. | hydrogen. |
a. | (1). | c. | (aq). |
b. | (g). | d. | (s). |
a. | Al+ + (NO3)3- | c. | Al3+ + NO33- |
b. | Al3+(aq) + 3NO3-(aq) | d. | Al3-(aq) + 3NO3+(aq) |
a. | electron configuration. | c. | s sublevel. |
b. | quantum. | d. | electron cloud. |
Short Answer |
84. How does the figure above illustrate the Pauli exclusion principle? |
85. How does the figure above illustrate Hund's rule? |
86. The electron configuration for nitrogen is 1s2 2s2 2p3. What does the 3 in 2p3 mean? |
Problem |
87. The molar mass of copper is 63.55 g/mol, the molar mass of sulfur is 32.07 g/mol, and the molar mass of oxygen is 16.00 g/mol. Calculate the molar mass of copper(II) sulfate, CuSO4. |
88. Use the symbols for the noble gases to write the electron configuration represented in the figure above. |
63.C64.B65.A66.D67.B68.D69.B70.A71.A72.A73B74.D75.C76.B77.B78.D79.A80.D81.C82.B83.D |