2. Cell Chemistry & Cell Components

Introduction to Chemical Bonding

Multiple Choice
Map of the Lesson on Chemical Bonding

According to the map above, which of the following are types of covalent bonds?
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Multiple Choice
How would you respond to this reasoning? Oxygen is not a greenhouse gas; therefore, gases containing oxygen—such as ozone, nitrous oxide, and carbon dioxide—are not greenhouse gases either.
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Multiple Choice
The chemical characteristics or reactivity of an element depend mostly on the __________.
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Multiple Choice
Some groups of chemical elements react similarly to one another. For example, the chemistries of sodium and of lithium are similar, as are the chemistries of chlorine and of iodine. These similarities in chemistry result when different elements have similar __________.
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Multiple Choice
For most atoms, when does the configuration of electrons make the atom unreactive?
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Open Question
What are the defining characteristics of a condensation reaction?a. Two monomers are covalently bonded together and a water molecule is produced.b. Two monomers are covalently bonded together and a water molecule is used up.c. A polymer is broken down into monomers and a water molecule is produced.d. A polymer is broken down into monomers and a water molecule is used up.
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Open Question
What are the defining characteristics of a condensation reaction?a. Two monomers are covalently bonded together and a water molecule is produced.b. Two monomers are covalently bonded together and a water molecule is used up.c. A polymer is broken down into monomers and a water molecule is produced.d. A polymer is broken down into monomers and a water molecule is used up.
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Textbook Question
What is chemically nonsensical about this structure?
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Textbook Question
What coefficients must be placed in the following blanks so that all atoms are accounted for in the products?C6H12O6→_C2H6O+_CO2a. 2; 1b. 3; 1c. 1; 3d. 2; 2
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Textbook Question
Which of the following lists the chemical bonds from weakest to strongest?a. hydrogen, covalent, ionic;b. covalent, ionic, hydrogen;c. ionic, covalent, hydrogen;d. covalent, hydrogen, ionic;e. hydrogen, ionic, covalent
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Textbook Question
The diagram below shows the arrangement of electrons around the nucleus of a fluorine and a potassium atom. What kind of bond do you think would form between these two atoms?
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Textbook Question
Explain the difference between an ionic and a covalent bond.
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Textbook Question
Identify each of the following molecules or compounds as ionic, polar covalent, or nonpolar covalent.
a. H₂O _________
b. LiI _________
c. C₁₀H₂₂ _________
d. N₂ _________
e. MgBr₂ _________
f. H₂S _________
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Textbook Question
With respect to their solubility in water, substances with nonpolar covalent bonds are__________, while substances with polar covalent and ionic bonds are__________.
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