Valance refers to the total number of electrons that exist in the orbitals that occupy the outermost energy level of an atom

Which of the following is true about the speed of light? it depends on the wavelength.

The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes

The equilibrium constant kc for the reaction 2 nocl(g) → 2 no(g) + cl2(g) is 0.453 at a certain temperature. a mixture of nocl, no, and cl2 with concentrations 1.30, 1.20, and 0.600 m, respectively, was introduced into a container at this temperature. which of the following is true? 1. no apparent reaction takes place. 2. [cl2] = 0.30 m at equilibrium. 3. nocl(g) is produced until equilibrium is reached. 4. [nocl] = [no] = [cl2] at equilibrium. 5. cl2(g) is produced until equilibrium is