what volume of magnesium in cubic centimeters would have the same mass as 1.82 dm^3 of platinum? The density of magnesium is 1.74g/cm^3, and the density of platinum is 21.45 g/cm^3.

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

is there multiple choice answers?

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.