Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 2, Problem 12SQ
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
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Chapter 2 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
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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- A salt does not release ______ in water. a. ions b. H+arrow_forwardSodium bicarbonate has a(n) ___________________pH value compared to hydrochloric acid. A. Higher B. Lower C. Equal D. Cannot be determinedarrow_forward_____________contribute hydrogen ions (H+) to a solution.a. Basesb. Isotopesc. Acidsd. Compoundsarrow_forward
- A cation has a(n) ________ charge.a. neutralb. positivec. alternatingd. negativearrow_forwardMatch the terms with their descriptionsarrow_forwardIn the human body,the -log of the hydrogen ion concentration ([H+]) is regulated by a. pH b. Acidity c.Alkalinity d.Bicarbonate ion e. Buffer systemarrow_forward
- Mark 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_forwardIron binds to heme with what are known as ________ bonds. a. ionic b. coordinate c. covalent d. hydrogen e. ironarrow_forward
- A pH of 3 is a. basic b. neutral c. acidicd. a bufferarrow_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
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