6. Radar signals are electromagnetic radiations in the microwave regions of the spectrum. A typical radar signal has a wavelength of 3.19 cm. What is its frequency in hertz?

If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?

Why is it that 85.48 rounded to two significant figures is 85 and not 86?

In the following reaction, oxygen is the excess reactant. sicl4 + o2 → sio2 + cl2 the table shows an experimental record for the above reaction. experimental record trial starting amount of sicl4 starting amount of o2 actual yield of sio2 1 120 g 240 g 38.2 g 2 75 g 50 g 25.2 g part 1: calculate the percentage yield for sio2 for trial 1. also, determine the leftover reactant for the trial. show your work. part 2: based on the percentage yield in trial 2, explain what ratio of reactants is more efficient for the given reaction.