Matter Review A review of Chapters 1 and 2 Material Original Phase New Phase Phase Change ice cream solid liquid 1. AND THE ANSWER IS melting Material Original Phase New Phase Phase Change water in puddles liquid 2. evaporation AND THE ANSWER IS gas Material Original Phase New Phase Phase Change outside cold glass 3. liquid condensation AND THE ANSWER IS gas Material Original Phase New Phase Phase Change butter solid liquid 4. AND THE ANSWER IS melting Material Original Phase New Phase Phase Change steam from hot soup 5. gas evaporation AND THE ANSWER IS liquid Material Original Phase New Phase Phase Change surface of a pond liquid 6. evaporation AND THE ANSWER IS gas Material Original Phase New Phase Phase Change water in a pot on stove 7. 8. evaporation AND THE ANSWER IS 7. liquid to 8. gas A(n) 9. ___________________________ has a definite volume and a definite shape. AND THE ANSWER IS solid The two main properties of matter are that it has 10.__________________ and _________________________. AND THE ANSWER IS ____mass_______ and ___takes up space ___. When salt dissolves in water, it shows the property of 11.___________________________. AND THE ANSWER IS solubility Marbles sliding over and around each other in a box model the behavior of matter in the 12.___________________________ state AND THE ANSWER IS liquid The ability to rust is a(n) 13. ___________________________ property of matter. AND THE ANSWER IS chemical When a liquid reaches its 14.___________________________ , it changes from a liquid to a gas. AND THE ANSWER IS boiling point You can separate a mixture of sand and iron filings with the use of a material that shows the property of 15.___________________________. AND THE ANSWER IS magnetism 16. The melting point of gold is 1064°C. Which of the following could describe gold? A. gas at 1000°C B. liquid at 1000°C C. liquid at 1100°C D. solid at 1100°C AND THE ANSWER IS C. liquid at 1100°C 17. Why does a liquid take the shape of its container? A. because the particles of the liquid are constantly moving B. because the matter has changed state C. because this is a chemical property D. because the particles do not move AND THE ANSWER IS A. because the particles of the liquid are constantly moving 18. Which of the following is NOT an example of a change of state? A. Plants using photosynthesis to produce food. B. Liquid water in perspiration changes to a gas when it evaporates. C. Water vapor in the air changes to a liquid when dew forms. D. An ice cream cone melts, forming a liquid. AND THE ANSWER IS A. Plants using photosynthesis to produce food. 19. Which description identifies a solid? A. definite volume and definite shape B. definite volume but no definite shape C. definite shape but no definite volume D. no definite shape and no definite volume AND THE ANSWER IS A. definite volume and definite shape 20. Which properties must matter have? A. weight and mass B. shape and energy C. mass and the ability to take up space D. weight and volume AND THE ANSWER IS C. mass and the ability to take up space 21. What is solubility? A. the ability of a substance to change state B. the ability of one material to dissolve in another C. the ability of a substance to have magnetic attraction D. the ability of a substance to dissolve another AND THE ANSWER IS B. the ability of one material to dissolve in another 22. A solid that forms as a result of a chemical reaction between two liquids is a ______. A.mineral B.precipitate C.solute D.supernate AND THE ANSWER IS B. precipitate 23. Which ability illustrates a chemical property of matter? A. ability to be shaped into a flat sheet B. ability to melt C. ability to rust D. ability to change state AND THE ANSWER IS C. ability to rust 24. What happens when a liquid reaches its boiling point? A. It gains mass. B. It gains density. C. It turns into a gas. D. It changes into solid. AND THE ANSWER IS C. It turns into a gas. 25. Which method could you use to separate a mixture of iron filings and sand? A. separation by burning B. separation by magnetism C. separation by boiling point D. separation by evaporation AND THE ANSWER IS B. separation by magnetism 26. What is the total mass shown on the balance ? AND THE ANSWER IS 142.1 grams or 142.1 g 27. What is the total mass shown on the balance ? AND THE ANSWER IS 200 grams or 200 g 28. A piece of pure gold (Au) has a volume of 50 cm3. What is its mass? A. 0.38 g B. 2.63 g C. 69.3 g D. 950 g AND THE ANSWER IS D. 950 g (Mass equals density times volume. On page 45, it says density of gold is 19.3 g/cm3… so about 19 x 50 = 950.) 29. What is the mass of a 16-cm3 sample of silver (Ag)? A. 0.656 g B. 1.52 g C. 26.5 g D. 168 g AND THE ANSWER IS D. 168 g (16 x 10.49 = 167.84 so about 168 g) 30. In an experiment you measure the mass of an unknown substance as 34.2 g and its volume as 4.34 cm3. Use the table to determine the most likely identity of the unknown substance. A. copper (Cu) B. iron (Fe) C. silver (Ag) D. zinc (Zn) AND THE ANSWER IS B. iron (Fe) 34.2 x 4.34 = 7.88018433 (so 7.87 g/cm3 is the closest answer) 31. ___________________________ and ___________________________ are similar because they are both in the nucleus of atoms. AND THE ANSWER IS protons and neutrons 32. What is the measurement shown in millimeters? AND THE ANSWER IS 6 mm 33. What is the measurement shown in centimeters? AND THE ANSWER IS 0.6 cm 34. What is the measurement shown in millimeters? AND THE ANSWER IS 14 mm 35. What is the measurement shown in centimeters? AND THE ANSWER IS 1.4 cm 36. What temperature is shown on the thermometer? AND THE ANSWER IS -6 ∘C 37. What temperature is shown on the thermometer? AND THE ANSWER IS 12 ∘C 38. Record each volume shown. A. Initial volume ____________ B. Total volume ____________ C. Object volume ____________ AND THE ANSWER IS A. 65 mL B. 69 mL C. 4 mL 39. Chemical or Physical Change? Broken plates AND THE ANSWER IS Physical Change 40. Chemical or Physical Change? AND THE ANSWER IS Chemical Change 41. Chemical or Physical Change? AND THE ANSWER IS Physical Change 42. Chemical or Physical Change? AND THE ANSWER IS Physical Change 43. Chemical or Physical Change? AND THE ANSWER IS Chemical Change 44. What is a combination of materials that are not evenly mixed called? AND THE ANSWER IS heterogeneous mixture 45. What is an evenly dispersed combination of two or more substances that are not chemically bonded called? AND THE ANSWER IS homogeneous mixture Element # of Protons # of electrons # of neutrons Sample size (g) Volume of sample (cm3) A. B. 26 30 42.5 5.40 Density (g/cm3) (rounded to nearest hundredth) C. 46 AND THE ANSWER IS A. iron B. 26 protons C. 7.87 g/ cm3 Element Tungsten # of # of # of Protons electrons neutrons D. E. F. Sample size (g) Volume of sample (cm3) Density (g/cm3) (rounded to nearest hundredth) 69.5 G. 19.31 47 AND THE ANSWER IS D. 74 protons (atomic #) E. 74 electrons F. 110 neutrons (Mass – Atomic # = Neutron#) (184 – 74 = 110) G. ~ 3.6 cm3 (v = m/D) (v= 70 ÷ 19 = 3.68421053) Element # of Protons H. 30 # of # of electrons neutrons 30 I. Sample size (g) Volume of sample (cm3) Density (g/cm3) (rounded to nearest hundredth) J. 6.50 7.14 48 AND THE ANSWER IS H. zinc I. 35 neutrons J. 46.4 g (m = Dv) 6.5 x 7.14 = 46.41