A sample of nitrogen gas, stored in a 3.45−L container at 32.0°C, exerts a pressure of 5.75 atm. Calculate the number of moles of nitrogen gas in the container.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

How do you know when a chemical reaction has occurred