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Ch 8 Review Qwizdom Get a Qwizdom clicker

Please make your selection If a bonding pair of electrons is unequally shared between two atoms, the bond is a. ionic. b. polar covalent. c. coordinate covalent. d. nonpolar covalent.

Please make your selection Name the following: CCl4 Dicarbon tetriodide Tetracarbon iodide Carbon carbon iodide Carbon tetrachloride

Please make your selection Which one of the following compounds is not covalent? a. SCl2 b. HCl c. KCl d. S2Cl2  

Please make your selection The chemical formula for ammonia is NH3. What type of formula is that? Molecular formula Structural formula Electron dot model Lewis structure

Please make your selection In Cl2, what is the total number of unshared pairs of electrons? a. 6 b. 4 c. 2 d. 1

Please make your selection A diatomic molecule with a triple covalent bond is a. N2 b. H2 c. Br2 d. O2

Please make your selection Atoms are __________ when they are combined. more stable less stable

Please make your selection Which of these elements does not exist as a diatomic molecule? a. I b. H c. F d. He

Please make your selection Name the following: CO2 Carbon dioxide Dicarbon oxide Dicarbon dioxide dicobaltide

Please make your selection Which of these compounds would not have covalent bonds? a. NO2 b. K2O c. N2O4 d. H2O2

Please make your selection How many valence electrons does an atom of any halogen have? a. 1 b. 17 c. 2 d. 7

Please make your selection The carbon tetrachloride molecule is a. four-cornered. b. square. c. tetrahedral. d. pyramidal.

Please make your selection In forming the molecule HF, the F atom attains the electron configuration of a. He. b. Ne. c. Ar. d. Cl.

Please make your selection Which of the following molecules has two lone pair of electrons? a. CH4 b. HCl c. H2O d. NH3

Please make your selection How many extra electrons are in the Lewis structure of the sulfate ion, SO42- ? 1 2 3 4

Please make your selection A covalent bond forms… a. when an element becomes a noble gas. b. when atoms share electrons. c. between metals and nonmetals. d. when electrons are transferred from one atom to another.

Please make your selection The shape of a molecule of NH3 is said to be a. tetrahedral. b. bent. c. pyramidal. d. linear.

Please make your selection A molecule with a single covalent bond is CO2. NO. F2. N2.

Please make your selection Atoms share electrons in order to acquire the electron configurations of a. alkali metals. b. alkaline earth metals. c. halogens. d. noble gases.

Please make your selection What type of bond would be expected in the compound LiF? a. ionic bond b. polar covalent bond c. nonpolar covalent bond d. none of the above

Please make your selection In the N2 molecule, what is the number of unshared pairs of electrons in each nitrogen atom? a. 1 b. 3 c. 2 d. 4

Please make your selection Which of the following contains a polar covalent bond? a. O2 b. MgCl2 c. CaO d. HF

Please make your selection Which of the following compounds is not ionic? a. CO2 b. CaCl2 c. NaI d. Na2O