Exam 3: Mass Relationships in Chemical Reactions
Exam 1: Chemistry: The Study of Change175 Questions
Exam 2: Atoms Molecules and Ions156 Questions
Exam 3: Mass Relationships in Chemical Reactions194 Questions
Exam 4: Reactions in Aqueous Solutions192 Questions
Exam 5: Gases130 Questions
Exam 6: Thermochemistry119 Questions
Exam 7: Quantum Theory and the Electronic Structure of Atoms135 Questions
Exam 8: Periodic Relationships Among the Elements144 Questions
Exam 9: Chemical Bonding I: Basic Concepts136 Questions
Exam 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic146 Questions
Exam 11: Intermolecular Forces and Liquids and Solids149 Questions
Exam 12: Physical Properties of Solutions122 Questions
Exam 13: Chemical Kinetics131 Questions
Exam 14: Chemical Equilibrium119 Questions
Exam 15: Acids and Bases178 Questions
Exam 16: Acid-Base Equilibria and Solubility Equilibria145 Questions
Exam 17: Entropy Free Energy and Equilibrium128 Questions
Exam 18: Electrochemistry154 Questions
Exam 19: Nuclear Chemistry128 Questions
Exam 20: Chemistry in the Atmosphere50 Questions
Exam 21: Metallurgy and the Chemistry of Metals63 Questions
Exam 22: Nonmetallic Elements and Their Compounds52 Questions
Exam 23: Transition Metals Chemistry and Coordination Compounds92 Questions
Exam 24: Organic Chemistry66 Questions
Exam 25: Synthetic and Natural Organic Polymers46 Questions
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Zircon is a mineral with the empirical formula ZrSiO4. If all the zirconium is 90Zr, all the silicon is 28Si, and all the oxygen is 16O, what mass of oxygen is present in 10. g of zircon
(Multiple Choice)
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What is the coefficient of H2SO4 when the following equation is properly balanced
___ Ca3(PO4)2 + ___ H2SO4 ___ CaSO4 + ___ H3PO4
(Multiple Choice)
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A 0.600 g sample of a compound of arsenic and oxygen was found to contain 0.454 g of arsenic. What is the empirical formula of the compound
(Multiple Choice)
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When balanced the coefficient of O2 in the following equation is __ C2H4 + __ O2 __ CO2 + __ H2O
(Multiple Choice)
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Calculate the percent composition by mass of oxygen in Na2CO3.
(Multiple Choice)
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Sulfur dioxide gas reacts with oxygen gas and water according to the chemical reaction below. When 4.5 g of SO2 are mixed with excess O2 and H2O, how many grams of H2SO4 are produced
2SO2(g) + O2(g) + 2H2O(l) 2H2SO4(l)
(Multiple Choice)
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When 22.0 g NaCl and 21.0 g H2SO4 are mixed and react according to the equation below, which is the limiting reagent
2NaCl + H2SO4 Na2SO4 + 2HCl
(Multiple Choice)
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The mineral manganosite is a compound of 55Mn and 16O. If 77% of the mass of manganosite is due to manganese, what is the empirical formula of manganosite
(Multiple Choice)
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Which of the following samples contains the greatest number of atoms
(Multiple Choice)
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Which of the following NH3 samples contains the greatest number of moles of NH3
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