Solute crystals are added to a solution until they begin to sink to the bottom of their container. The solution is then heated, and many more solute crystals dissolve. Which term best describes the solution immediately after it was heated?

A. saturated
B. unsaturated
C. concentrated
D. supersaturated

unsaturated

Explanation:

Saturated solution is defined as the solution in which no more solute particles can be dissolved in the solvent.

Unsaturated solution is defined as the solution in which more solute particles can be dissolved in the solvent.

Concentrated solution is defined as solution in which amount of solute is more than the amount of solvent.

Supersaturated solution is defined as the solution in which more amount of solute particles is present than the solvent particles.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.