Question

classify the following statements as heterogeneous mixture, a suspension, a colloid or a solution (homogeneous mixture). 1. spicy salad dressing 2. soda pop 3. fertilizer that is spread on the lawn. 4. paint for the walls 5. a compost pile in the backyard for the garden 6. a gold necklace (gold and copper) 7. laundry detergent (contains white and blue crystals) 8. pizza 9. cough syrup that must be shaken before it is ingested. 10. freshly squeezed orange juice 11. blueberry muffin 12. benzene (c₆h₆) 13. nail polish remover (c₃h₆o) 14. a muddy pond 15. a mixture of rocks, grass and metal

Explanation:

1. Spicy salad dressing: It has visible different - sized particles and phases, so it is a heterogeneous mixture.
2. Soda pop: Carbon dioxide gas is dissolved in a liquid, it is a solution (homogeneous mixture).
3. Fertilizer on the lawn: Usually has different components that are not uniformly mixed, it is a heterogeneous mixture.
4. Paint: Dispersed particles in a medium, it is a colloid.
5. Compost pile: Contains various organic and inorganic materials in different states, it is a heterogeneous mixture.
6. Gold necklace (gold and copper): A solid - solid alloy, it is a solution (homogeneous mixture).
7. Laundry detergent: Has different crystals and components, it is a heterogeneous mixture.
8. Pizza: Has various ingredients like cheese, sauce, and toppings, it is a heterogeneous mixture.
9. Cough syrup to be shaken: Particles settle out over time, it is a suspension.
10. Freshly squeezed orange juice: Has pulp and other non - dissolved components, it is a heterogeneous mixture.
11. Blueberry muffin: Has different parts like the muffin batter and blueberries, it is a heterogeneous mixture.
12. Benzene ($C_6H_6$): A pure compound, not a mixture.
13. Nail polish remover ($C_3H_6O$): A pure compound, not a mixture.
14. Muddy pond: Has dirt particles suspended in water, it is a suspension.
15. Mixture of rocks, grass, and metal: Different substances not uniformly mixed, it is a heterogeneous mixture.

Answer:

1. Heterogeneous mixture
2. Solution (homogeneous mixture)
3. Heterogeneous mixture
4. Colloid
5. Heterogeneous mixture
6. Solution (homogeneous mixture)
7. Heterogeneous mixture
8. Heterogeneous mixture
9. Suspension
10. Heterogeneous mixture
11. Heterogeneous mixture
12. Not a mixture
13. Not a mixture
14. Suspension
15. Heterogeneous mixture