the heat of fusion of a compound is 30.0 joules per gram. what is the number of joules of heat that must be absorbed by a 15.0 geam sample to change the compound from solid to liquid at its melting point

i think slash and

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

the objects have the same charge.