You are filling a root beer mug from a keg. the pressure in the keg is 5 psig, the filling tube from the keg is 5 ft long plastic drawn tubing with ¼ in. id, and the valve is a diaphragm dam type. the tube is attached to the keg by a threaded tee, used as an elbow. if the root beer leaving the tube is 1 ft above the level of the root beer inside the keg, how long will it take to fill your mug

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.