You need to make a stock solution of a known copper concentration for your experiment. you start by weighing out a piece of pure copper wire which has a mass of 0.211 g. you then add 1.0 ml of 12 m hno3, 3.0 ml of h2o and 2.0 ml of 12 m nh4oh to dissolve the copper metal.
the moles of copper that are in the solution = 0.00332 mols. now i need to find the final molarity of copper in the solution.

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.

explanation:

a