CHEMISRTY 120 N week 2 quiz

Question 1. Question : (TCO 3) For the following molecule, give the cation name and charge (1pt) , anion name and charge (1pt), type(s) of bond (2pts) and name of the molecule (1pt). MgBr2 Student Answer: Magnesium forms the Mg 2+ cation. Bromine forms the Br - anion when combined with metal. Two Br- anions are required to balance the 2+ charge of the Mg2+ cation! forming MgBr2 Instructor Explanation: Chapter 4; Cation: Magnesium; Charge +2 Anion: Bromine; Charge -1 Type of bond: ionic Name: Magnesium bromide Points Received: 4 of 5 Comments: Excellent! We just also needed the name..... Question 2. Question : (TCO 3) What is the name for the following compound, PBr5? Student Answer: Phosphorus pentabromide Instructor Explanation: Chapter 4; a covalent compound, phosphorus pentabromide Points Received: 5 of 5 Comments: Question 3. Question : (TCO 3) For the following molecule, give the cation name and charge (1pt) , anion name and charge (1pt), and name of the molecule (3 pt). Na2CO3 Student Answer: Sodium (Na) Carbonate (CO3). Carbonate is composed of 1 carbon atom and three oxygen atoms and has a charge of -2. The carbon and o