Atank contains 200 gallons of water in which 300 grams of salt is dissolved. a brine solution containing 0.4 kilograms of salt per gallon of water is pumped into the tank at the rate of 5 gallons per minute, and the well-stirred mixture is pumped out at the same rate. let latex: a\left(t\right)a(t)[math processing error] represent the amount of salt (measured in kilograms) in the tank at time latex: t[math processing error].

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

c is the answer because when something is left after something evaporates that shows the chemical change.

the objects have the same charge is correct.

nathan lee