Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 2, Problem 16SQ
Match the terms with their most suitable description.
| ____ | hydrophilic | a. protons > electrons |
| ____ | atomic number | b. number of protons in nucleus |
| ____ | hydrogen bonds | c. polar; dissolves easily in water |
| ____ | positive charge | d. collectively strong |
| ____ | negative charge | e. protons < electrons |
| ____ | temperature | f. measure of molecular motion |
| ____ | pH | g. water-dreading |
| ____ | covalent bond | h. electron sharing |
| ____ | hydrophobic | i. reflects H+ concentration |
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Match the terms with their most suitable description. ____ hydrophilic a. protons > electrons ____ atomic number b. number of protons in ____ hydrogen bonds nucleus ____ positive charge c. polar; dissolves easily in ____ negative charge water ____ temperature d. collectively strong ____ pH e. protons < electrons ____ covalent bond f. measure of molecular ____ hydrophobic motion g. water-dreading h. electron sharing i. reflects H+ concentration
One of the most important properties of water is that it can form a _______ with other water molecules. This means that water molecules are able to “stick together” to a certain extent. The term for this property is cohesion.
A. Ionic bond
B. Covalent Bond
C. Hydrogen Bond
Letter only, no need to explain.
1. These are molecules composed of hydrogen, carbon and oxygen, with no 2:1 ratio of hydrogen to oxygen.
A. Lipids
B. Carbohydrates
C. Proteins
D. Nucleic acids
2. The following statement are true about water EXCEPT:
A.Water is a polar substance.
B.Water will dissolve non-polar substances
C.Water forms hydration shells around certain ions
D.The capacity of water to dissolve many substances comes from its dipolar nature.
3. If a compound dissociates into H+ and a negative ion, it is a?
A. acid
B. base
C. salt
D. neutral compound
4. The following are components of a nucleotide EXCEPT:
A. Pentose sugar
B. Phosphate group
C. hydroxyl group
D. Nitrogen-containing base
5. The following can be dissolved in water EXCEPT:
A. Salts
B. Carbohydrates
C. Lipids
D. Hydrochloric acid
Chapter 2 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - What atom has only one proton? a. hydrogen b. an...Ch. 2 - A molecule into which a radioisotope has been...Ch. 2 - Prob. 3SQCh. 2 - Prob. 4SQCh. 2 - All ions have at least one ________ (select all...Ch. 2 - Rank the following chemical bonds in order of...
Ch. 2 - The measure of an atoms ability to pull electrons...Ch. 2 - The mutual attraction of opposite charges holds...Ch. 2 - Atoms share electrons unequally in a(n) ________...Ch. 2 - A(n) ________ substance repels water. a. acidic b....Ch. 2 - Prob. 11SQCh. 2 - Prob. 12SQCh. 2 - When dissolved in water, a(n) ________ donates H+;...Ch. 2 - A ________ can help keep the pH of a solution...Ch. 2 - Prob. 15SQCh. 2 - Match the terms with their most suitable...Ch. 2 - Alchemists were medieval scholars and philosophers...Ch. 2 - Draw a shell model of a lithium atom (Li), which...Ch. 2 - Polonium is a rare element with 33 radioisotopes....Ch. 2 - Some undiluted acids are not as corrosive as when...
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