Is the following sentence true or false? The properties of a metal are related to bonds within the metal,

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

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?