7. Classify each of the following statements as true of false.a. Heterogeneous mixtures must contain three or more substances.b. Compounds cannot have a variable composition.C. Elements are seldom encountered in the "everyday" world.8. Classify each of these substances as an element, compound, or mixture.a. a sample of "laughing gas" (N₂O)b. the steam coming from a pan of boiling watera bar of deodorant soapC.d. a sample of coppere.f.g.a cup of mayonnaisethe helium filling a balloona.COh. Co9. Classify each of the following as a homogeneous mixture or heterogeneous mixture.Black coffeeb. A teaspoon of sugar dissolved in a cup of coffeeC. Lemonade (with pulp)d. Chocolate chip cookie

7-a true 7-b. True 7-c. True 8/a. Compound 8/b. Elements 8/c. Soap is not a compound, it…

Answered: nces. ure.

Science

Chemistry

nces. ure.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.

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7. Classify each of the following statements as true of false.
a. Heterogeneous mixtures must contain three or more substances.
b. Compounds cannot have a variable composition.
C. Elements are seldom encountered in the "everyday" world.
8. Classify each of these substances as an element, compound, or mixture.
a. a sample of "laughing gas" (N₂O)
b. the steam coming from a pan of boiling water
a bar of deodorant soap
C.
d. a sample of copper
e.
f.
g.
a cup of mayonnaise
the helium filling a balloon
a.
CO
h. Co
9. Classify each of the following as a homogeneous mixture or heterogeneous mixture.
Black coffee
b. A teaspoon of sugar dissolved in a cup of coffee
C. Lemonade (with pulp)
d. Chocolate chip cookie

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Nitesh
O₂N NEC Å FeBr Br 3
hbgthh
II. Analysis 1. Answer the following questions based on the given tables. % Fatty acid by weight Fat or oil Palmitic Stearic Oleic Linoleic Lard 24.6 15.0 50.4 10.0 Olive 14.6 75.4 10.0 Peanut 8.5 6.00 51.6 26.0 Corn 6.0 2.0 44.0 48.0 1. has the highest iodine number? 2. has the lowest melting point? 3. requires the least number of moles hydrogen for complete hydrogenation? _4. would likely be solid at room temperature? 5-6. Arrange based on melting temperature (highest to lowest). 7-8. Arrange based on tendency to solidify first as temperature is decreased (slowest to fastest). 9-10. Arrange based on degree of unsaturation (highest to lowest).