Unit 1 Study Guide

Name: ___ Period: __

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Unit 1 Study Guide

Assessment Date: Friday, Sept. 16

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Overview

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1. The three states of matter are , , and ___.

2. In a ____ particles are tightly packed and vibrate in place. 

3. Particles in a move freely without a definite volume. 

4. A substance can be categorized as either a pure substance or a mixture. 

5. A pure substance can be either a(n) or a(n) ___.

6. A mixture can either be or __.

7. Groups on the Periodic Table represent _.

8. Periods on the Periodic Table represent _. 

9. Elements in the same group share two commonalities: 

10. ---

11. ---

12. The first question to ask when determining if a change is physical or chemical is: ___

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Randomized Questions: 

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1. Is “density” a physical or chemical property? 

2. If heat is released from water, what phase change occurs? 

3. If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?

4. How is the Periodic Table organized?

5. If you were to increase the kinetic energy of a substance, what would happen to the properties? 

6. What is the atomic number of this element?

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7. Which state of matter has the least amount of kinetic energy?

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8. Sam wants to demonstrate how water changes from a solid to a gas. He places ice in a pot on a stove. What variable is causing water to change state?

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9. Helium, neon, and argon are examples of _.

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10. The atomic number of magnesium is 12. This means that its nucleus must contain protons, neutrons, and electrons.

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11. The law of conservation of matter states that during a chemical reaction, the amount of matter

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12. A change in properties and ___ of a substance means that a change has occurred. 

13. What type of change is rusting metal, physical or chemical? 

14. Salt water could be separated using evaporation. Is salt water a pure substance or a mixture?

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15. What property are you checking when you waft ?

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16. The average kinetic energy of particles in an object is proportional to what property?

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17. What type of mixture is air?

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18. What type of pure substance is water? 

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19. How are oxygen and water different?

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