A sample of oxygen gas in a closed system has a volume of 0.225 L at a pressure of 947 kPa. What will the pressure of the gas be when the volume is reduced to 0.216 L if the temperature remains constant?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.