Chat with AIExam 2: The Components of Matter
Exam 1: Keys to Studying Chemistry Definitions, Units, and Problem Solving71 Questions
Exam 2: The Components of Matter100 Questions
Exam 3: Stoichiometry of Formulas and Equations70 Questions
Exam 4: Three Major Classes of Chemical Reactions111 Questions
Exam 5: Gases and the Kinetic-Molecular Theory97 Questions
Exam 6: Thermochemistry Energy Flow and Chemical Change72 Questions
Exam 7: Quantum Theory and Atomic Structure69 Questions
Exam 8: Electron Configuration and Chemical Periodicity77 Questions
Exam 9: Models of Chemical Bonding61 Questions
Exam 10: The Shapes of Molecules98 Questions
Exam 11: Theories of Covalent Bonding48 Questions
Exam 12: Intermolecular Forces Liquids, Solids, and Phase Changes90 Questions
Exam 13: The Properties of Mixtures Solutions and Colloids96 Questions
Exam 14: Periodic Patterns in the Main-Group Elements102 Questions
Exam 15: Organic Compounds and the Atomic Properties of Carbon107 Questions
Exam 16: Kinetics Rates and Mechanisms of Chemical Reactions78 Questions
Exam 17: Equilibrium the Extent of Chemical Reactions97 Questions
Exam 18: Acid-Base Equilibria100 Questions
Exam 19: Ionic Equilibria in Aqueous Systems114 Questions
Exam 20: Thermodynamics Entropy, Free Energy, and Reaction Direction84 Questions
Exam 21: Electrochemistry Chemical Change and Electrical Work100 Questions
Exam 22: The Elements in Nature and Industry45 Questions
Exam 23: Transition Elements and Their Coordination Compounds82 Questions
Exam 24: Nuclear Reactions and Their Applications81 Questions
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In a Millikan oil-drop experiment, the charges on several different oil drops were as follows: -5.92; -4.44; -2.96; -8.88. The units are arbitrary. What is the likely value of the electronic charge in these arbitrary units?
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(29) The substance, KClO3, is a strong oxidizer used in explosives, fireworks, and matches. What is its name?
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(34) Which one of the following combinations of names and formulas of ions is incorrect?
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(35) Which of the following is the empirical formula for hexane, C6H14?
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(33) Ferric oxide is used as a pigment in metal polishing. Which of the following is its formula?
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(27) A red glaze on porcelain can be produced by using MnSO4. What is its name?
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(39) When an atom is represented by the symbol 
, the value of A is the
, the value of A is the (Multiple Choice)
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(32) In nature, some elements exist as molecules, while others do not.
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(23) Determine the molecular mass of iron (III) bromide hexahydrate, a substance used as a catalyst in organic reactions.
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(35) Barium sulfate is used in manufacturing photographic paper. What is its formula?
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(34) The molecular formula of a compound provides more information than its structural formula.
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(44) Which one of the following combinations of names and formulas of ions is incorrect?
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(38) Modern studies have shown that the Law of Multiple Proportions is not valid.
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(31) Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature lubricants. It has two naturally occurring isotopes, 6Li (isotopic mass = 6.015121 amu) and 7Li (isotopic mass = 7.016003 amu). Lithium has an atomic mass of 6.9409 amu. What is the percent abundance of lithium-6?
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(36) The substance, CoCl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?
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