Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 2, Problem 10RQ
We call a molecule that binds up excess hydrogen ions in a solution a(n).
- acid
- isotope
- base
- donator
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Which pH value indicates a solution that has more hydrogen ions that hydroxide ions?
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Chapter 2 Solutions
Biology 2e
Ch. 2 - Figure 2.3 How many neutrons do carbon-12 and...Ch. 2 - Figure 2.7 An atom may give, take, or share...Ch. 2 - Figure 2.24 Which of the following statements is...Ch. 2 - If xenon has an atomic number of 54 and a mass...Ch. 2 - Atoms that vary in the number of neutrons found in...Ch. 2 - Potassium has an atomic number of 19. What is its...Ch. 2 - Which type of bond represents a weak chemical...Ch. 2 - Which of the following statements is not true?...Ch. 2 - When acids are added to a solution, the pH should...Ch. 2 - We call a molecule that binds up excess hydrogen...
Ch. 2 - Which of the following statements is true? Acids...Ch. 2 - Each carbon molecule can bond with as many as...Ch. 2 - Which of the following is not a functional group...Ch. 2 - What makes ionic bonds different from covalent...Ch. 2 - Why are hydrogen bonds and van der Waals...Ch. 2 - Discuss how buffers help prevent drastic swings in...Ch. 2 - Why can some insects walk on water?Ch. 2 - What property of carbon makes it essential for...Ch. 2 - Compare and contrast saturated and unsaturated...
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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_forwardWhen dissolved in water, an _________ donates H+; an ________ accepts H+. a. acid; base c. buffer; solute b. base; acid d. base; bufferarrow_forwardAn ________ can help keep the pH of a solution stable. a. covalent bond c. buffer b. hydrogen bond d. free radicalarrow_forward
- A(n) _______ substance repels water. a. acidic b. basic c. hydrophobic d. polararrow_forwardIn ________ reactions, small molecules are linked by covalent bonds, and water can also form. a. hydrophilic b. hydrolysis c. condensation d. ionicarrow_forwardAn _________ substance repels water. a. acidic c. hydrophobic b. basic d. polararrow_forward
- The mutual attraction of opposite charges holds atoms together as molecules in an _______ bond. a. ionic c. polar covalent b. hydrogen d. nonpolar covalentarrow_forwardA substance dissociates into K+ and Cl- in solution. The substance is a(n) ________. acid base salt bufferarrow_forwardAtoms share electrons unequally in an _______ bond. a. ionic c. polar covalent b. hydrogen d. nonpolar covalentarrow_forward
- In the formation of water, partial positive and partial negative charges are formed around the hydrogen atoms and oxygen atom, respectively, due to a difference in between hydrogen and oxygen. O Proton Capacity O Hydrogen Bonding Electronegativity Electroaffinityarrow_forwardWhich of the following is not a characteristic of water due to hydrogen bonding? Solvent Adhesion Cohesion Adenosine O O Oarrow_forwardWhen comparing pH, a solution with a pH of 5 contains 100 times the amount of H+ when compared to a solution with a pH of 7.arrow_forward
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