Question

name: london coe
period: 4th
soluble or insoluble in water:
cooking oil insoluble
sugar soluble
soap
dirt
salt
circle the solute and underline the solvent.
salt water
sugar water
a solution of 20% hcl and 80% water.
chocolate milk
rubbing alcohol: 60% alcohol; 40% water.
solution (so), suspension (sp), or colloid (c)?
it settles
doesnt settle or scatter light
scatters light, but doesnt settle
homogeneous at molecular level
particles sometimes visible

1. solution

a. when a substance cannot be dissolved into a solution.

1. alloy

b. a mixture of two metals.

1. dissolve d.

c. a mixture that is homogeneous at the molecular level.

1. suspension

d. when something seems to disappear into a solution.

1. colloid

e. a mixture that scatters light and the particles do not settle out.

1. insoluble

f. a temporary mixture; the particles will eventually settle.

1. supersaturated

a. when a solution can hold more solute.

1. saturated

b. when a solution cant hold more solute.

1. tyndall effect

c. when a solution has more solute than it can hold.

1. unsaturated

d. the part of a solution that is biggest. (the water in salt water.)

1. solute

e. the scattering of light in a colloid

1. solvent

f. the part of a solution that is smallest. (the salt is salt water.
across:

1. when a solution has more solute than it can hold.
2. when a solution can hold more solute.
3. when a substance cannot be dissolved into a solution.
4. a temporary mixture; the particles will eventually settle.
5. when a solution cant hold more solute.
6. a mixture that is homogeneous at the molecular level.
7. the part of a solution that is smallest (the salt in salt water.

down

1. the scattering of light in a colloid.
2. when something seems to disappear in a solution.
3. a mixture of two metals.
4. a mixture that scatters light and the particles do not settle out.
5. the part of a solution that is biggest. (the water in salt water.

Explanation:

Step1: Determine solubility in water

Cooking oil is insoluble in water, sugar is soluble, soap is soluble, dirt is insoluble, salt is soluble.

Step2: Identify solute and solvent

For salt - water, salt is solute (circle) and water is solvent (underline); for sugar - water, sugar is solute and water is solvent; for 20% HCl and 80% water, HCl is solute and water is solvent; for chocolate milk, substances like cocoa and sugar are solutes and milk (mostly water) is solvent; for rubbing alcohol (60% alcohol; 40% water), alcohol is solute and water is solvent.

Step3: Classify mixtures

It settles: Suspension (e.g., dirt - water mixture). Doesn't settle or scatter light: Solution (e.g., salt - water). Scatters light, but doesn't settle: Colloid (e.g., chocolate milk). Homogeneous at molecular level: Solution. Particles sometimes visible: Suspension or Colloid (depending on visibility conditions).

Step4: Match terms with definitions

1. Solution: C. A mixture that is homogeneous at the molecular level.
2. Alloy: B. A mixture of two metals.
3. Dissolve: D. When something seems to disappear into a solution.
4. Suspension: F. A temporary mixture; the particles will eventually settle.
5. Colloid: E. A mixture that scatters light and the particles do not settle out.
6. Insoluble: A. When a substance cannot be dissolved into a solution.
7. Supersaturated: C. When a solution has more solute than it can hold.
8. Saturated: B. When a solution can't hold more solute.
9. Tyndall Effect: E. The scattering of light in a colloid.
10. Unsaturated: A. When a solution can hold more solute.
11. Solute: F. The part of a solution that is smallest.
12. Solvent: D. The part of a solution that is biggest.

Answer:

Solubility in water: Cooking oil - insoluble, Sugar - soluble, Soap - soluble, Dirt - insoluble, Salt - soluble.
Solute - Solvent: Salt - water: Salt (solute), Water (solvent); Sugar - water: Sugar (solute), Water (solvent); 20% HCl and 80% water: HCl (solute), Water (solvent); Chocolate milk: Cocoa, sugar etc. (solute), Milk (solvent); Rubbing alcohol: Alcohol (solute), Water (solvent).
Mixture classification: It settles - Suspension; Doesn't settle or scatter light - Solution; Scatters light, but doesn't settle - Colloid; Homogeneous at molecular level - Solution; Particles sometimes visible - Suspension/Colloid.
Term - Definition match: 1 - C, 2 - B, 3 - D, 4 - F, 5 - E, 6 - A, 7 - C, 8 - B, 9 - E, 10 - A, 11 - F, 12 - D.