If an electron falls from the n = 2 to the n = 1 energy levels in a Hydrogen atom what wavelength of light is emitted? A. 1025 nm
B. 97nm
C. 122nm
D. 103nm

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

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

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption