Answer the following: 1. What is mixture?
2.Do solids, liquids and gases mix?
3.What are the three classifications of mixtures?
4.How do we prepare solutions?
5.Give at least 5 examples of solutions.
6. What is colloid?
7.Give 5 examples of colloids.
8. What is suspension?
9. Give 5 examples of suspension.
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Answer:
1. A mixture is made when two or more substances are combined, but they are not combined chemically.
2. You can mix solids with solids, solids with liquids, and liquids with liquids. You can mix gases with gases, and liquid with gases. These combinations of materials are called mixtures. Sometimes it is easy to see the different materials in a mixture.
3. solutions, suspensions, and colloids
4. You prepare a solution by dissolving a known mass of solute (often a solid) into a specific amount of a solvent. One of the most common ways to express the concentration of the solution is M or molarity, which is moles of solute per liter of solution.
5. coffee or tea.
sweet tea or coffee (sugar added to solution)
any juice.
saltwater.
bleach (sodium hypochlorite dissolved in water)
6. A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance.
7. whipped cream, mayonnaise, milk, butter, gelatin
8. In chemistry, a suspension is a heterogeneous mixture of a fluid that contains solid particles sufficiently large for sedimentation.
9.
Muddy water
Milk of magnesia
Sand particles suspended in water
Flour in water
Slaked lime for whitewashing
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