Campbell Essential Biology (7th Edition)
Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 2, Problem 7SQ

Which of the following is not a chemical reaction?

  1. a. Sugar (C6H12O6) and oxygen gas (O2) combine to form carbon dioxide (CO2) and water (H2O).
  2. b. Sodium metal and chlorine gas unite to form sodium chloride.
  3. c. Hydrogen gas combines with oxygen gas to form water.
  4. d. Ice metals to form liquid water.
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Which of the following is an organic molecule?a. CO2 c. H2Ob. O2 d. C6H12O6
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Which of the following statements is incorrect? a. Isotopes have the same atomic number and different mass numbers. b. Atoms have about the same number of electrons as protons. c. All molecules consist of atoms. d. Free radicals are dangerous because they emit energy
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