How many kilowatt-hours of electricity are used to produce 4.00 kg of magnesium in the electrolysis of molten MgCl2 with an applied emf of 4.50 V

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave