The electrolysis of molten AlCl3 for 1.50 hr with an electrical current of 12.0 A produces g of aluminum metal.

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

Which characteristics can be used to differentiate star systems? check all that apply.

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m