Calculate the fraction of atom sites that are vacant for copper (cu) at a temperature of 754°c (1027 k). assume an energy for vacancy formation of 0.90 ev/atom.

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Sugar is dissolved in water. which is the solute? sugar neither both water