A wave has a wavelength of 0.02m and period of 8.0*10^-2 seconds. calculate it's speed. (showing working)​

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?