Concept explainers
(a)
Interpretation:
The chemical formula of Iodine, a solid that consists of diatomic molecules has to be given and a picture of the nanoscale particles arrangement at room temperature has to be drawn.
(b)
Interpretation:
The chemical formula of Ozone, a gas that consists of triatomic molecules has to be given and a picture of the nanoscale particles arrangement at room temperature has to be drawn.
(c)
Interpretation:
The chemical formula of Helium has to be given and a picture of the nanoscale particles arrangement at room temperature has to be drawn.
(d)
Interpretation:
The chemical formula of Carbon dioxide has to be given and a picture of the nanoscale particles arrangement at room temperature has to be drawn.
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Chapter 1 Solutions
OWLv2 for Moore/Stanitski's Chemistry: The Molecular Science, 5th Edition, [Instant Access], 1 term (6 months)
- What is the chief factor that determines thephysical slateof a sample of matter?arrow_forwardClassify the substances represented by the models in Problem 1-58 as to the number of atoms present per molecule, that is, as diatomic, triatomic, tetraatomic, etc.arrow_forwardWhat properties distinguish solids from liquids? Liquids from gases? Solids from gases?arrow_forward
- If we classify substances as ionic, molecular, macromolecular, or metallic, in which if any categories are all the members a. soluble in water? b. electrical conductors in the melt? c. insoluble in all common solvents? d. solids at room temperature?arrow_forwardCopper:(a) Suppose you have a cube of copper metal that is 0.236 cm on a side with a mass of0.1206 g. If you know that each copper atom (radius = 128 pm) has a mass of 1.055 ×10–22 g (you will learn in Chapter 2 how to find the mass of one atom), how manyatoms are there in this cube? What fraction of the cube is filled with atoms? (Orconversely, how much of the lattice is empty space?) Why is there “empty” space in thelattice?(b) Now look at the smallest, repeating unit of the crystal lattice of copper.Knowing that an edge of this cube is 361.47 pm and the density of copper is 8.960g/cm3, calculate the number of copper atoms in this smallest, repeating unitarrow_forwardSelect the best answer or answers from the choices given: Which of the following does not describe a mixture? (a) properties of its components are retained, (b) chemical bonds are formed, (c) components can be separated physically, (d) includes both heterogeneous and homogeneous examples.arrow_forward
- Classify each of the following as an element, a compound, or a mixture:(a) copper(b) water(c) nitrogen(d) sulfur(e) air(f) sucrose(g) a substance composed of molecules each of which contains two iodine atoms(h) gasolinearrow_forwardChemistry (b) A sampling plan is necessary to ensure that a laboratory sample is truly a representative of the entire population. (i) Describe the goals of the sampling plan. "It is possible to determine whether the population is homogeneous or heterogeneous if a single sample is collected and analyzed." Comment on this statement. (ii)arrow_forwardYou are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to distinguish between samples of metals and non- metals?(b) Asses the usefulness of these tests in distinguishing between metals and non-metals?arrow_forward
- 7. State whether each of the following represents a chemical change or merely a physical change:(a) A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar crystals “disappear,” and the liquid in the beaker remains clear and colorless.(b) A copper statue, over time, turns green.(c) When a teaspoon of baking soda (sodium bicarbonate) is placed into a few ounces of vinegar (acetic acid), volumes of bubbles (effervescence) are produced.arrow_forwardClassify each of the following as an element, a compound, or a mixture:(a) iron(b) oxygen(c) mercury oxide(d) pancake syrup(e) carbon dioxide(f) a substance composed of molecules each of which contains one hydrogen atom and one chlorine atom(g) baking soda(h) baking powderarrow_forwardMusical instruments like trumpets and trombones are madefrom an alloy called brass. Brass is composed of copper andzinc atoms and appears homogeneous under an optical microscope.The approximate composition of most brass objectsis a 2:1 ratio of copper to zinc atoms, but the exact ratio variessomewhat from one piece of brass to another. (a) Would you classify brass as an element, a compound, a homogeneousmixture, or a heterogeneous mixture? (b) Would it be correctto say that brass is a solution?arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningChemical Principles in the LaboratoryChemistryISBN:9781305264434Author:Emil Slowinski, Wayne C. Wolsey, Robert RossiPublisher:Brooks ColeChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
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