NaCl, also known as table salt is a stable substance that can be ingested. Explain using the trends you know about the periodic table as to why Na and Cl, two very reactive elements would bond (connect) to create a substance that is part of just about everything we eat.

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.