Sodium azide, NaN3is an ionic compound consisting of Na ions and N3-ions. A 0.50 M solution of NaN3has a pH of 9.21. Calculate the pH of a 0.50 M aqueous solution of HN3(aq) A.3.52B.9.21C.2.52D.4.36E.6.64

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

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