Which of the following represents a metal displacement reaction?

Upon reaction of 38.6 g of  copper(III) iodide with excess lead(II) nitrate, 42.5 g of lead(II) iodide  was obtained according to the balanced equation: 2 CuI3(aq) + 3 Pb(NO3)2(aq)⟶ 2 Cu(NO3)3(aq) + 3 PbI2(s) What is the percent yield of lead(II) iodide?  (If you wish, show your work for possible partial credit.)

Manson and his wife went out shopping for clothes one day. Since Manson always wore SoftSewn brand shirts, his wife picked out only those shirts for him to try on. However, when shown the shirts, Manson said, “I need to try something different.” Manson’s response is an example of _____.

How many WAN links are required to create a full mesh of connections between five remote sites?

Curtis likes to drink soda. He takes the empty bottles and cans that he has collected to his wife, who uses them to make art. This is an example of how to:

General Knowledge question How can firewalls be used to protect an organization’s internal network, while allowing connectivity to an untrusted network, like the Internet?   Define: a) Packet-filtering Firewall b) State-full Firewall c) Firewall Zones

Each sample in the figure below contains one mole of the substance. Which, if any, has the most mass?    

An oxide ion, O2–, has:

General Knowledge question Define what these commands accomplish and why would you use them: a) netstat b) traceroute google.com c) ipconfig /all d) ping 192.168.1.200 e) arp -a

Liquid oxygen boils at –183°C. Express the boiling point of liquid oxygen in Kelvin.