A1 l aqueous solution is prepared at 25°c with 10-4 moles of hydrocyanic acid (hcn) and 10-3 moles of disodium carbonate (na2co3) and reaches equilibrium. a) list the 8 unknown chemical species (water is not unknown). b) list (do not solve) all 4 equilibrium expressions that describe this system, including the values for the equilibrium constants.

Type the letter that represents the correct location for each particle type below.

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

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