Campbell Essential Biology Plus Mastering Biology with eText -- Access Card Package (6th Edition) (Simon et al., The Campbell Essential Biology Series)
6th Edition
ISBN: 9780133909708
Author: Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 8SQ
Some people in your study group say they don’t understand what a polar molecule is. You explain that a polar molecule
- a. is slightly negative at one end and slightly positive at the other end.
- b. has a extra electron, giving it a positive charge.
- c. has a extra electron, giving it a negative charge.
- d. has covalent bonds.
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Chapter 2 Solutions
Campbell Essential Biology Plus Mastering Biology with eText -- Access Card Package (6th Edition) (Simon et al., The Campbell Essential Biology Series)
Ch. 2 - An atom can be changed into an ion by adding or...Ch. 2 - If you change the number of _____ the atom becomes...Ch. 2 - A nitrogen atom has 7 protons, and the most common...Ch. 2 - Why are radioactive isotopes useful to tracers in...Ch. 2 - What is chemically nonsensical about this...Ch. 2 - Why is it unlikely that two neighboring water...Ch. 2 - Which of the following is not a chemical reaction?...Ch. 2 - Some people in your study group say they dont...Ch. 2 - Explain how the unique properties of water result...Ch. 2 - Explain why it is unlikely that life could exist...
Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - Animals obtain energy through a series of chemical...Ch. 2 - Prob. 13PSCh. 2 - Interpreting Data. As shown in Figure 2.17,...Ch. 2 - Critically evaluate this statement: Its paranoid...Ch. 2 - A major source of the CO2 that causes ocean...
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- The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the nucleus.c. weight of the atom.d. number of protons in the valence shell.arrow_forwardHow is a covalent bond formed? A. two atoms share two pairs of electrons B. two atoms share two electrons C. two atoms share one electron D. one atom loses a pair of electrons to the otherarrow_forwardWhat atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopearrow_forward
- Which type of bond represents a weak chemical bond? a. hydrogen bond b. ionic bond c. covalent bond d. polar covalent bondarrow_forwardMagnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom? a. It has 12 protons, 12 electrons, and 12 neutrons. b. It has 12 protons, 12 electrons, and six neutrons. c. It has six protons, six electrons, and no neutrons. d. It has six protons, six electrons, and six neutrons.arrow_forwardMiller and Urey created a reaction chamber that simulated conditions in Earths early atmosphere to test the hypothesis that______. a. lightning-fueled atmospheric reactions could have produced organic compounds b. meteorites contain organic compounds c. organic compounds form at hydrothermal vents d. oxygen prevents formation of organic compoundsarrow_forward
- Take a look at this molecule. a) What type of molecule is this? b) How do you know? c) Describe the variety of larger molecules made from this molecule.arrow_forwardWhich statement is true of all atoms that are anions?(A) The atom has more electrons than protons.(B) The atom has more protons than electrons.(C) The atom has fewer protons than does a neutral atomof the same element.(D) The atom has more neutrons than protons.arrow_forwardWater molecules have one oxygen atom that is more electronegative than the two hydrogen atoms bound to it. As a result, which type of bonding hold water molecules together a. non-popular covalent bonding b. polar covalent bonding c.ionic bonding d.hydriohocicarrow_forward
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