Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 2, Problem 11SQ
Summary Introduction
Introduction: When a hydrogen atom gains or losses an electron, the hydrogen ions (H+) are formed. It is present in the nucleus of the hydrogen atom.
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Hydrogen ions (H+) are ________ .a. in blood c. indicated by a pH scaleb. protons d. all of the above
Acids are substances that ________.
a.
release hydrogen ions
b.
absorb hydrogen ions
c.
absorb hydroxide ions
Sodium bicarbonate has a(n) ___________________pH value compared to hydrochloric acid.
A. Higher
B. Lower
C. Equal
D. Cannot be determined
Chapter 2 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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. 1DAACh. 2 - Mercury Emissions by Continent By weight, coal...Ch. 2 - Prob. 3DAACh. 2 - Prob. 4DAACh. 2 - Prob. 4SQCh. 2 - Prob. 5SQCh. 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. 10SQCh. 2 - Prob. 11SQCh. 2 - When dissolved in water, a(n) ________ donates H+;...Ch. 2 - A ________ can help keep the pH of a solution...Ch. 2 - Prob. 14SQCh. 2 - Prob. 15SQCh. 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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- Match the terms with their descriptionsarrow_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_forwardThe solubility of KI is 50 g / 100 g of water at 20 °C. If 110 g of Kl are added to 200 g water A. All of the Kl will dissolve B. The solution will freeze C. the container of the solution will feel warm to the touch D. a saturated solution will form E. an unsaturated solution will formarrow_forward
- Iron binds to heme with what are known as ________ bonds. a. ionic b. coordinate c. covalent d. hydrogen e. ironarrow_forwardWhich of the following ionizes completely in solution and is considered to be a strong acid? Select one: O a. NAOH O b. HCL O c. NH3 O d. H2CO3 O e. CH3COOHarrow_forwardSubstances 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_forward
- A conjugate acid-base paira. acts as a buffer.b. can combine with H+ in a solution.c. can release H+ to combine with OH−.d. describes carbonic acid (H2CO3) and bicarbonate ions (HCO3−).e. All of these are correct.arrow_forwardWhich of the following substances will dissolve in water A.nonpolar B.polar C.hydrophobic D.hydrophilic E.ionicarrow_forwardWhen hydrogen is a part of a ________, it has a slight positive charge. a. Ionic bond b. polar covalent bond c. nonpolar covalent bondarrow_forward
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