Chapter 1 & 3 Review

1. Chapter 1 & 3 Review Chemistry 312

2. Which of the following measurements would be affected by altitude? Weight or Mass

3. Which of the following would not be considered matter: A. atoms B. heat C. alloys D. pudding

4. After extensive experimentation what end result of the scientific method offers an explanation of what occurs in nature. A Law or a Theory

5. Which of the following properties couldn’t you describe quantitatively: Temperature Time Pressure Color

6. What type of matter does jello represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

7. What type of matter does Copper I chloride (CuCl) represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

8. What type of matter does this granite represent: a. element b. compound c. heterogeneous mixture d. homogeneous mixture

9. Read the following: Smithersthinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks. What is the dependent variable: Number of stacks of paper

10. Felix designs an experiment to see if lady bugs from North America have more spots than lady bugs from south America. Is this an example of pure or applied research?

11. What is the relationship between the two variables? Direct or Indirect

12. Oskar went into the grocery store in June (2011) and saw a shelf piled high with boxes of candy canes that are on sale. Oskar thinks that this is strange and assumes that they are left over from last winter. He grabs one of the boxes and examines it for a sell by date. The date on the box is 11/2011. What is Oskar’s Hypothesis? The candy canes are left over from last year and outdated

13. The observation of this property of matter is always accompanied by a change in the composition of matter? Physical or Chemical

14. What type of change is represented by the freezing of water to form ice? Physical or Chemical

15. Which state of matter has an indefinite volume and is easy to compress? Solid, Liquid or Gas

16. Which of the following is not a physical property? Temperature Ability to dissolve Color Ability to rust

17. Which of the following is an extensive property of matter? Attraction to a magnet Temperature Volume Density

18. Which of the following types of matter can be separated by physical change? Elements Compounds Mixtures

19. A solution is another name for: element compound homogeneous mixture heterogeneous mixture

20. What type of matter is oxygen (O2)? element compound homogeneous mixture heterogeneous mixture

21. What separtation technique would be used to separate a heterogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization

22. What separtation technique would be used to separate a homogeneous mixture containing a solid and a liquid? distillation chromatography filtration crystallization

23. What technique uses the physical property of boiling point to separate components of a mixture? distillation chromatography filtration crystallization

24. What type of reaction is associated with the absorption of energy? Exothermic or Endothermic

25. According to the Law of Conservation of Mass, what must the mass of CO2 be in the following equation? C6H12O6+ 6O2 6CO2 + 6H2O 54g + 98g = _99g_ + 53g

26. Which of the following is not an indication of a chemical change? formation of a gas change in color formation of a precipitate melting