Question

circle all of the solutions
salt water
sugar water
drinking water
orange juice
pure gold
iron
steel
oil and water
soap and water
a salt solution is too concentrated. how would you dilute it?
what will eventually happen to a supersaturated solution?
what does it mean when a suspension settles?
a liquid is poured onto a piece of metal. later on the metal seems to have softened.
a) which is the solvent?
b) what is happening to the metal?
what happens if you add more solute to a saturated solution?
what happens if you add more solute to a supersaturated solution?
what happens if you add more solute to an unsaturated solution.

Explanation:

1. Circle all of the Solutions: Solutions are homogeneous mixtures. Salt water, sugar water, orange - juice are solutions. Pure gold and iron are elements, not solutions. Steel is an alloy (a solid - solution), oil and water is a heterogeneous mixture, soap and water can form a solution or a colloid depending on concentration. So the solutions are salt water, sugar water, orange juice, steel.
2. Diluting a salt solution: To dilute a concentrated salt solution, add more solvent (water).
3. Supersaturated solution: A supersaturated solution is unstable. Eventually, the excess solute will crystallize out of the solution.
4. Suspension settling: A suspension is a heterogeneous mixture where particles are large enough to settle out over time. When a suspension settles, the larger particles separate from the liquid and accumulate at the bottom.
5. Liquid on metal:

• A) The liquid is the solvent as it is the component that is present in a larger amount and is dissolving or reacting with the metal.
• B) The metal is being dissolved or corroded by the liquid.

1. Adding solute to solutions:

• In a saturated solution, the maximum amount of solute is dissolved at a given temperature. Adding more solute will cause the excess solute to remain undissolved at the bottom of the container.
• In a supersaturated solution, adding more solute will trigger the crystallization of the excess solute, and the solution will return to a saturated state.
• In an unsaturated solution, adding more solute will cause the solute to dissolve until the solution becomes saturated.

Answer:

1. Salt water, sugar water, orange juice, steel
2. Add more water.
3. The excess solute will crystallize out.
4. The larger particles separate and accumulate at the bottom.
5. A) The liquid. B) The metal is being dissolved or corroded.
6. In a saturated solution, the excess solute remains undissolved. In a supersaturated solution, the excess solute crystallizes out. In an unsaturated solution, the solute dissolves until saturated.