The mixture use separated was a mixture of iron feelings sand and salt based on your understanding of matter is this mixture a homogenous or mixture or heterogenous mixture

This would be a heterogeneous mixture since the mixture could contain different proportions of sand, salt, and iron fillings. If the mixture was homogeneous, the mixture would be distributed evenly throughout and be considered a solution (i.e salt mixed with water, kool-aid powder and water).

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.