13.2 g of iron(III) alum were dissolved in water and reduced to an iron(II) ion solution zinc and dilute sulfuric acid. The mixture was filtered and the filtrate and washings we
made
up
to 500 cm in a standard volumetric flask. If 20.0 cm of this solution
required 26.5 cm of 0.0100 mol dm- KMnO4 for oxidation:
a) give the ionic equation for the reduction of iron(III) ions by zinc metal.
(b) Calculate the percentage by mass of iron in iron alum.​

mention the spill to the teacher clean the area and throw the broken pieces away

explanation:

where's the diagram?

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.