5.The ionic product of an aqueous solution (a solution with water as the solvent), symbolized Kw, is defined by the equation Kw= [H*(aq)] * [OH-] where the brackets
denote the concentrations (in moldm-) of H*(aq) and OH ions at that temperature. What
are the units of Kw? Calculate Kw for a solution at 25 °C if [H(aq)] = 5 x 10-1° moldmº
and [OH-] = 2.0 x 10- moldm. Express your answer to the correct number of significant
figures.

idk what the question is about

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3