Properties of Matter Review

1. Properties of Matter Review CPE 2011

2. 2.1 What Is Matter?

3. The smallest unit of an element that maintains the properties of that element is a(n) • molecule • atom • substance • compound :10

4. Which of the following is not a pure substance? • Element • Molecule • Compound • Mixture :10

5. Which of the following is a mixture? • Air • Sodium chloride • Pure Water • Sulfur :10

6. Which of the following is not a homogeneous mixture? 1. silver 2. salt water 3. tea 4. clear lemon-lime soda :10

7. ________ is an example of matter, while _______ is not matter. • Heat; paper • Sound; sunlight • Sunglasses; water • Air; sunlight :10

8. 7.1 Solutions and Other Mixtures

9. One example of a heterogeneous mixture is • muddy water. • plain water. • salt water. • air. :10

10. Some rubbing alcohol is a uniform mixture of isopropanol and water. This mixture • is a solution. • settles out upon standing. • is heterogeneous. • is immiscible. :10

11. Particles in a _______ can be separated by filtration. • alloy • solution • suspension • all of the above :10

12. Cinnamon sugar can be best classified as a(n) • element • compound • homogeneous mixture • heterogeneous mixture :10

13. Carbon is an example of a • Element • Compound • Pure substance • Both 1 & 3 :10

14. 2.2 Properties of Matter

15. Which of the following statements does not describe a physical property of iron? • Iron is denser than aluminum. • Iron melts at 1535°C. • Iron can be formed into different shapes. • Iron reacts with strong acids. :10

16. All of the following are units for density except • g/mL3 • g/mL • g/cm3 • g/L :10

17. Which of the following is not a physical property of matter? • Boiling point • Flammability • Solubility (how well something dissolves) • Density :10

18. What is the volume of a 45 g piece of copper that has a density of 8.92 g/mL? • 400 mL • 0.20 mL • 5.0 mL • 54 mL :10

19. A block of wood has dimensions of 9.5 cm long, 2.3 cm wide, and 1.8 cm high. What is the density of the block of wood if it has a mass of 28.6 g? • 1100 g/cm3 • 0.73 g/cm3 • 2.1 g/cm3 • 1.4 g/cm3 :10

20. 2.3 Changes of Matter

21. Which of the following is a physical change? • Melting ice cubes • Burning paper • Rusting iron • Burning gasoline :10

22. One property of all mixtures is that they • can be separated without chemical changes. • contain a definite ratio of elements. • contain chemically combined elements. • are solutions. :10

23. All of the following are indicators of chemical changes except that • gas is released. • light and sound are released. • the substances don’t change. • new substances are formed. :10

24. Which of the following is not a physical way to separate a mixture? • using a magnet to pick up one part of the mixture • heating the mixture until it burns • passing the mixture through a filter • spinning the mixture in a centrifuge :10

25. Which of the following is least likely to be a sign that a chemical change is taking place? • A bright flame is produced. • Bubbles of gas are released. • A solution changes from colorless to red. • Spilled rubbing alcohol seems to disappear. :10

26. 3.1 Matter and Energy

27. Which segment represents the solid state only? • A to B • B to C • C to D • D to E :10

28. Which segment represents evaporation? • A to B • B to C • C to D • D to E :10

29. What is happening to the particles during segments D to E? • Moving faster • Spreading apart • Moving faster and spreading apart • Moving slower and closer together :10

30. Freezing/solidification is a ____ change because ___. • Endothermic; heat energy is gained • Exothermic; heat energy is lost • Endothermic; heat energy is lost • Exothermic; heat energy is gained :10

31. Which of the following is not a part of the kinetic theory of matter? • Higher potential energy means higher temperatures • Higher temperatures make particles move faster • Large particles move more slowly • All matter is made of particles :10