What is the wavelength (in nanometers) of light having a frequency of 3.9 x 1013 Hz?

3 A specific amount of energy is emitted when excited electrons in an atom in a sample of an element return to the ground state.

Joseph drives 25miles North in 15 minutes then he drives 40 miles east in 30 minutes, then he uses cruise control option for 1 hour and covers 70 miles on the highway and finally drives 15 miles in 15 minutes. What was his average speed?

Henry law is obeyed by a gas when gas has high a) Pressure b) Temperature c) Solubility d) Non of the above

What is the limiting reagent when 3.1 mol of SO2 react with 2.7 mol of O2 according to the equation: 2SO2 (g) + O2 (g) - -> 2SO3 (g)

When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. this nuclear process is called fission. fusion. decomposition. chain reaction. ionization?

Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KClO3 (is). The equation for the reaction is 2 KClO3 ⟶ 2 KCl + 3 O 2 Calculate how many grams of O 2 (g) can be produced from heating 66.1 g KClO 3 (s).

Explain how Beer's law can be applied in food, drug or medical testing

The entropy of a sample of CO2 increases as the CO2 changes from (1) gas to liquid (3) liquid to solid (2) gas to solid (4) solid to gas

Which one of the following is a kind of organic

The reaction rates of many spontaneous reactions are actually very slow. Which of these statements is the best explanation for this observation? a. Kp for the reaction is less than one b. ÎG° for the reaction is positive c.