CHEM 6A Chapter Notes - Chapter 6: Nonmetal, Covalent Bond

your name on each page. Section A. Multiple Choice Questions. Choose the best answer. Each question in this section is worth 4 points. Make sure you answer all questions. 1. A covalent bond is best described as: a) the sharing of electrons between atoms. the transfer of electrons. a bond between a metal and a nonmetal. b) c) d) a bond between a metal and a polyatomic ion c) a bond between two polyatomic ions. 2. Identify the substance with ionic bonds. a) Ne b) CO d) H20e) KCI 3. Which of the following contains BOTH ionic and covalent bonds? b) Cl2 c) MgSO4 d) SF6 a) BaF2 4.What type of bonding is found in the compound PCls? a) covalent bonding b) hydrogen bonding c) ionic bonding d) metallic bonding 5. Which of the following is a molecular element? a) bariumb) iron c) xenon d) iodine e) sodium 6. Identify the element whose ion only exists as 2+. a) calcium b) cesium c) lead d) carbon e) radon 7. What is the charge on the Co ions in Co203? Write the formula for the compound formed between rubidium and sulfur. a) RbS 8. b) Rbs2 c) Rb2S d) Rb2S03 e) Rb3S2 Give the formula for iron(IIl) nitrate. a) Fe(NO2)3 . b) Fe(NO3)3 c) Fe(NO3)2 d) Fe(NO2)2 e) Fe2(NO2) 0. The solid compound, Na2CO3, contains a) Nat, c4+, and 02-ions. b) Nat and CO3 -2 ions. e) Na2 and CO3 -2 ions. c) Na? an