Matter Review A review of Chapters 1 and 2

MaterialOriginal PhaseNew PhasePhase Change ice creamsolidliquid1.

AND THE ANSWER IS melting

MaterialOriginal PhaseNew PhasePhase Change water in puddlesliquid2.evaporation

AND THE ANSWER IS gas

MaterialOriginal PhaseNew PhasePhase Change outside cold glass3.liquidcondensation

AND THE ANSWER IS gas

MaterialOriginal PhaseNew PhasePhase Change buttersolidliquid4.

AND THE ANSWER IS melting

MaterialOriginal PhaseNew PhasePhase Change steam from hot soup5.gasevaporation

AND THE ANSWER IS liquid

MaterialOriginal PhaseNew PhasePhase Change surface of a pondliquid6.evaporation

AND THE ANSWER IS gas

MaterialOriginal PhaseNew PhasePhase Change water in a pot on stove 7.8.evaporation

AND THE ANSWER IS 8. gas 7. liquid to

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 grams or 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 cm 3. What is its mass? A g B g C 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/cm 3 … so about 19 x 50 = 950.)

29. What is the mass of a 16-cm 3 sample of silver (Ag)? A g B g C g D. 168 g

AND THE ANSWER IS D. 168 g (16 x = 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 cm 3. 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 = (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

Broken plates 39. Chemical or Physical Change?

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) Density (g/cm3) (rounded to nearest hundredth) A.B C. 46

AND THE ANSWER IS A. iron B. 26 protons C g/ cm 3

Element # of Protons # of electrons # of neutrons Sample size (g) Volume of sample (cm3) Density (g/cm3) (rounded to nearest hundredth) TungstenD.E.F.69.5G

AND THE ANSWER IS D. 74 protons (atomic #) E. 74 electrons F. 110 neutrons (Mass – Atomic # = Neutron#) (184 – 74 = 110) G. ~ 3.6 cm 3 (v = m/D) (v= 70 ÷ 19 = )

Element # of Protons # of electrons # of neutrons Sample size (g) Volume of sample (cm3) Density (g/cm3) (rounded to nearest hundredth) H.H.30 I.J

AND THE ANSWER IS H. zinc I. 35 neutrons J g (m = Dv) 6.5 x 7.14 = 46.41