Think about the systems around you for example you’re reading this text on a computer system write definition for the word system

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.

What is the mass of 0.46 mol of mgcl2