Hydrogen has two naturally occurring isotopes, 1h and 2h. chlorine also has two naturally occurring isotopes, 35cl and 37cl. thus, hydrogen chloride gas consists of four distinct types of molecules: 1h35cl, 1h37cl, 2h35cl, and 2h37cl. place these four molecules in order of decreasing rate of effusion.

Movement that is like a t a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. transfers energy from one location to another a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave