Answer is: metal is lead with density of 11,4 g/cm³. Text that missing: a sample of an unkwown metal has a mass of 35,4 g and a volume of 3,11 cm³. m(metal) = 35,4 g. V(metal) = 3,11 cm³. d(metal) = m(metal) ÷ V(metal) d(metal) = 35,4÷ g ÷ 3,11 cm³ d(metal) = 11,4 g/cm³.
