Atank contains 400 liters of frest brine containing 0.3 kg/liter of salt runs into th tank at the rate of 5 liters/minute. the mixture uniform by stirring, runs out at 10 liters/minuta find the maximum amount of salt in the tank and the t. required to reach the maximum.

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.