BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 2, Problem 5SA
All ions have at least one ________ (select all that are correct).
| a. proton | c. electron |
| b. neutron | d. all of the above |
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Chapter 2 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 2 - What atom has only one proton? a. hydrogen c. a...Ch. 2 - A molecule into which a radioisotope has been...Ch. 2 - Prob. 3SACh. 2 - Prob. 4SACh. 2 - All ions have at least one ________ select all...Ch. 2 - Rank the following chemical bonds in order of...Ch. 2 - The mutual attraction of opposite charges holds...Ch. 2 - Atoms share electrons unequally in an _______...Ch. 2 - An _________ substance repels water. a. acidic c....Ch. 2 - A salt does not release ______ in water. a. ions...
Ch. 2 - Hydrogen ions H+ are _____. a. in blood c....Ch. 2 - When dissolved in water, an _________ donates H+;...Ch. 2 - An ________ can help keep the pH of a solution...Ch. 2 - Prob. 14SACh. 2 - Prob. 15SACh. 2 - Alchemists were the forerunners of modern-day...Ch. 2 - Draw a shell model of a lithium atom Li, which has...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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- Molecules that are found in living cells and contain the element___________ are considered organic molecules.a. hydrogenb. carbonc. oxygend. nitrogene. calciumarrow_forwardBonds in which atoms share electrons are defined as _____________ bonds.a. hydrogenb. ionicc. doubled. covalentarrow_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
- Isotopes differ from each other only in the number of electrons they contain. Select one: a. True b. Falsearrow_forwardThe nucleus of an atom contains: a. neutrons and electrons b. protons and electrons c. protons only d. neutrons and protons e. neutrons onlyarrow_forwardFill in the blanks by writing the name of the definition: In a __________ reaction the transfer of electrons takes place a. Precipitation b. Decomposition c. redox d. displacementarrow_forward
- The mutual attraction of opposite charges holds atomstogether as molecules in a(n) ________ bond.a. ionic c. polar covalentb. hydrogen d. nonpolar covalentarrow_forwardAcids are substances that ________. a. release hydrogen ions b. absorb hydrogen ions c. absorb hydroxide ionsarrow_forward______ are monomers that form polymers called _______. a. Nucleotides; nucleic acids b. Amino acids; nucleic acids c. Monoglycerides; triglycerides d. Carbohydrates; monosaccharidesarrow_forward
- On the pH scale, a substance with a pH of 2 would be considered to be _____. Select one: a. an acid b. neutral c. a base d. slightly acidicarrow_forwardPeptide bond cleavage is a _____________ reaction. a. hydration b. hydrolysis c. addition d. eliminationarrow_forwardThe atomic number of sulfur is 16, Sulfur combines with hydrogen by covalent bonding to form a compound, hydrogen sulfide. Based on the number of valence electrons in a sulfur atom, predict the molecular formula of the compound. a. HS b. HS2 c.H2S d. H3S2arrow_forward
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