State the meaning of the term redox. Can't find the perfect answer.

redox- noun- a process in which one substance or molecule is reduced and another oxidized; oxidation and reduction considered together as complimentary processes.

example- "redox reactions involve electron transfer"

answer; i believe the correct answer is (solid gold);

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