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Chapter 2-3
Question | Answer |
---|---|
What three ways can you help speed up the process of dissolving? | Stirring, heating, and increase in surface area. |
What are some physical properties of solids? | Close together, makes its own shape. |
What are some physical properties of liquids? | Forms its own shape of the container, close together. |
What are some physical properties of gases? | Spaces out and bounces around. Forms the shape of its container. |
What's the difference between heterogeneous mixtures and homogeneous mixtures? | Heterogeneous mixtures have parts that are noticeably different from one another, and homogeneous mixtures that are evenly distributed. |
What is a suspension? | It is a heterogeneous mixture that separates in layers over time. |
What is the Tyndall Effect? | It's a process used to tell the difference between a colloid and a solution. |
Is a suspension transparent, opaque, or clear? | Opaque. |
What does it mean fro something to dissolve in something else? | On a molecular/atomic, there must be solvent molecules surrounding the solute. |
What is plasma? | Instead of H2O, the H's and O's separate. When it gets hot enough, electrons separate and cause a glow. |
What does the Kinetic Theory state? | 1. All particles vibrate in place in solids. 2. All particles of a gas are in constant, random motion. 3. Particles don't lose energy when they collide. 4. Particles in solids are usually closer together than liquids and gases. |