Biology
10th Edition
ISBN: 9780073383071
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 2, Problem 7U
A solution with a high concentration of hydrogen ions
a. is called a base.
b. is called an acid.
c. has a high pH
d. Both b and c are correct.
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Students have asked these similar questions
If the addition of an acid or a base to a solution does not change its pH (or changed minimally), then that solution is referred to as a
a. acid
b. base
c. buffer
d. neutral solution
Which of the following statements is true? a. Acids and bases cannot mix together. b. Acids and bases will neutralize each other. c. Acids, but not bases, can change the pH of a solution. d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).
Which of the following describes a buffer?
A. The measure of the amount of hydrogen ions in a liquid
B. A set of chemicals that can keep the pH of a solution stable by alternately donating and accepting the ions that contribute to pH
C. A substance that releases hydrogen ions in water
D. A substance that accepts hydrogen ions in water
Chapter 2 Solutions
Biology
Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3A
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- Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution? a. weakly acidic b. strongly acidic c. weakly basic d. strongly basicarrow_forwardA salt does not release ______ in water. a. ions b. H+arrow_forwardA base a. has a value below 7 on the pH scale. b. is a chemical that adds hydrogen ions to a solution. c. has a value of 7 on the pH scale. d. is a chemical that absorbs hydrogen ions from a solution.arrow_forward
- Substances those are partially dissolved in water are commonly known as اخترأحد الخيارات a. hydrophilic / hydrophobic b. false statement c. hydrophilic d. hydrophobic e. all given choices are incorrectarrow_forwardSelect the statements that are TRUE regarding Water. SELECT ALL THAT APPLY A. Water is amphoteric B. Water can be a base C. Water is partially charged D. Water can be an acidarrow_forwardWhich of the following substances will dissolve in water A.nonpolar B.polar C.hydrophobic D.hydrophilic E.ionicarrow_forward
- This occurs when the cations and anions are attracted to the positive and negative ends of water molecules: A. ionic bonding B. dissociation C. covalent bonding D. hydrogen bondingarrow_forwardHCI is a type of the following: O a. Acid O b. Base O c. Buffer O d. Salt Oe. None of the Abovearrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Acids dissociate in water to give hydrogen ions and an anion. b. Bases are defined as hydrogen ion donors. c. As a solution’s pH rises, it becomes more acidic. d. A buffer is a system of chemicals that resists a change in pH. e. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.arrow_forward
- In a solution of NaCl and water, NaCl is the and water isthe .a. acid, baseb. base, acid c. solute, solventd. solvent, solutearrow_forwardCompounds having an affi nity for water are said to bea. cohesive. c. hydrophobic.b. hydrophilic. d. adhesivearrow_forwardWhich of the following materials will have the greatest effect on colligative properties of a solution? a. CH3CI b. NaCl c. (NH4)2SO4 d. CH3CH2OH O A O Darrow_forward
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