A cube of aluminum has a mass of 500g. What will be the mass of a cube of magnesium of the same dimensions? (Density of aluminum is 2.7g/ml)

The mass of a cube of magnesium : 322.2 g

Further explanation

Density is a quantity derived from the mass and volume

Density is the ratio of mass per unit volume

The unit of density can be expressed in g / cm³ or kg / m³

Density formula:

ρ = density , g / ml

m = mass , g

v = volume , ml

mass of aluminum = 500 g

density of aluminium = 2.7 g/ml

there is data that needs to be added⇒ density of magnesium : 1.74 g/ml

the same dimensions = the same volume

volume of aluminum

mass of magnesium

V magnesium = V aluminum

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

The mass has escaped into a gas which you can not see so the law stays true.