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Chemistry Unit 1 Test Review

Total questions: 98

Worksheet time: 49mins

Name
Class
Date
1.

1. _____ occur when a substance turn into a new substance.

a)

Chemical Reactions

b)

Physical Changes

c)

Reactants

d)

Products

2.

1. _____ have two or more elements chemically combined.

a)

Atoms

b)

Compounds

c)

Mixtures

d)

Elements

3.

1. _____ are substances with a changing shape and a changing volume.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

4.

1. _____ are substances that cannot be broken down anymore and have the same properties throughout.

a)

Heterogeneous Mixtures

b)

Compounds

c)

Homogeneous Mixtures

d)

Elements

5.

1. _____ have components that can be identified because it is not evenly mixed.

a)

Heterogeneous Mixtures

b)

Compounds

c)

Homogeneous Mixtures

d)

Elements

6.

1. _____ are substances with a changing shape and a defined volume.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

7.

1. _____ have components that cannot be identified because everything is evenly mixed.

a)

Heterogeneous Mixtures

b)

Compounds

c)

Homogeneous Mixtures

d)

Elements

8.

1. _____ is anything that takes up space and has mass.

a)

Elements

b)

Compounds

c)

Mixtures

d)

Matter

9.

1. _____ have particles that vibrate in place and are packed very close to each other.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

10.

1. _____ are data or information gathered with one's senses.

a)

Qualitative Data

b)

Observations

c)

Quantitative Data

d)

Scientific Method

11.

1. _____ are a physical blend of two or more components.

a)

Elements

b)

Compounds

c)

Mixtures

d)

Matter

12.

1. _____ are components in a mixture that have the same properties.

a)

Elements

b)

Compounds

c)

Liquids

d)

Phases

13.

1. _____ are substances with a defined shape and a defined volume.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

14.

1. _____ have particles that move past one another but are close to each other and the particles move at a moderate rate of speed.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

15.

1. _____ take the volume of the container and have particles that move very quickly and spread out.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

16.

1. _____ are substances where the particles move very quickly and are charged since it is made of ions and other charged particles.

a)

Solids

b)

Liquids

c)

Gases

d)

Plasmas

17.

1. A _____ is a list of steps to follow when completing an experiment.

a)

Procedure

b)

Reactant

c)

Product

d)

Conclusion

18.

1. A _____ is the starting substance in a chemical reaction.

a)

Procedure

b)

Reactant

c)

Product

d)

Conclusion

19.

1. A _____ is the ending substance in a chemical reaction.

a)

Procedure

b)

Reactant

c)

Product

d)

Conclusion

20.

1. _____ a substance that is currently in the gas phase but typically isn't at room temperature.

a)

Solids

b)

Liquids

c)

Plasma

d)

Vapor

21.

2. _____ is the force of gravity on an object.

a)

Weight

b)

Mass

c)

Matter

d)

Volume

22.

3. _____ is a variable that you change in an experiment.

a)

Controlled Variable

b)

Control Group

c)

Independent Variable

d)

Dependent Variable

23.

3. _____ is a variable that changes based on the independent variable.

a)

Controlled Variable

b)

Control Group

c)

Independent Variable

d)

Dependent Variable

24.

3. _____ is a variable that stays the same throughout the experiment.

a)

Controlled Variable

b)

Control Group

c)

Independent Variable

d)

Dependent Variable

25.

4. _____ is the study of the composition of matter.

a)

inorganic chemistry

b)

analytical chemistry

c)

physical chemistry

d)

organic chemistry

e)

biochemistry

26.

5. A _____ is a change that happens to a substance that does not change the composition.

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

27.

6. _____ is data that is descriptive in words.

a)

Numerical data

b)

Descriptive data

c)

Qualitative data

d)

Quantitative data

28.

7. _____ is the quantity of matter an object contains.

a)

Weight

b)

Mass

c)

Matter

d)

Volume

29.

8. Which of the following is the first step in the scientific method?

a)

Complete a controlled experiment.

b)

Make a hypothesis.

c)

Make conclusions.

d)

Make observations.

e)

Collect data.

30.

8. Which of the following is the second step in the scientific method?

a)

Complete a controlled experiment.

b)

Make a hypothesis.

c)

Make conclusions.

d)

Make observations.

e)

Collect data.

31.

8. Which of the following is the third step in the scientific method?

a)

Complete a controlled experiment.

b)

Make a hypothesis.

c)

Make conclusions.

d)

Make observations.

e)

Collect data.

32.

8. Which of the following is the fourth step in the scientific method?

a)

Complete a controlled experiment.

b)

Make a hypothesis.

c)

Make conclusions.

d)

Make observations.

e)

Collect data.

33.

8. Which of the following is the last step in the scientific method?

a)

Complete a controlled experiment.

b)

Make a hypothesis.

c)

Make conclusions.

d)

Make observations.

e)

Collect data.

34.

9. A _____ is a property that depends on what the substance is made of.

a)

physical property

b)

intensive property

c)

extensive property

d)

chemical property

35.

10. _____ is the study all chemicals containing carbon.

a)

inorganic chemistry

b)

analytical chemistry

c)

physical chemistry

d)

organic chemistry

e)

biochemistry

36.

11. _____ is the study of chemicals that do not contain carbon.

a)

inorganic chemistry

b)

analytical chemistry

c)

physical chemistry

d)

organic chemistry

e)

biochemistry

37.

13. _____ is the study of the composition and structure of matter and its changes.

a)

Applied chemistry

b)

Analytical chemistry

c)

Chemistry

d)

Pure chemistry

38.

14. A _____ is a mixture that is not evenly mixed.

a)

heterogeneous mixture

b)

homogeneous mixture

c)

solution

d)

colloid

39.

15. A _____ is a well-tested explanation for a broad set of observations.

a)

scientific theory

b)

scientific law

c)

scientific method

d)

hypothesis

40.

15. A _____ is a statement that summarizes the results of many observations and experiments.

a)

scientific theory

b)

scientific law

c)

scientific method

d)

hypothesis

41.

15. A _____ will never change, while a _____ can change based on new results and information.

a)

scientific theory, scientific law

b)

scientific law, scientific method

c)

scientific law, scientific theory

d)

scientific method, scientific theory

42.

16. _____ is the pursuit of chemical knowledge for its own sake.

a)

Pure chemistry

b)

Applied chemistry

c)

Organic chemistry

d)

Physical chemistry

43.

17. Which of the following is NOT a sign of a chemical change?

a)

forms a precipitate

b)

change in temperature

c)

change in taste

d)

change in odor

44.

17. Which of the following is NOT a sign of a chemical change?

a)

produces water

b)

produces a solution

c)

produces bubbles

d)

produces a gas

45.

17. Which of the following is NOT a sign of a chemical change?

a)

change in state of matter

b)

change in color

c)

produces light

d)

produces a sound

46.

18. A _____ is a change that happens to a substance that change the composition when the change is complete.

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

47.

19. _____ is chemical research that strives to have a purpose or solve a problem.

a)

Pure chemistry

b)

Applied chemistry

c)

Organic chemistry

d)

Physical chemistry

48.

20. A _____ is a property that is only observed or measured during a chemical reaction.

a)

physical property

b)

intensive property

c)

extensive property

d)

chemical property

49.

21. How do you calculate error? Which of the following is incorrect?

a)

You calculate percent difference when you have two measurements with no standard or actual measurement.

b)

You calculate percent error when you have an actual measurement or standard.

c)

You compare measurements and get the average to determine if they are correct.

d)

You compare the actual measurement with the experimental measurement.

50.

22. _____ is the study of the processes that take place in organisms.

a)

inorganic chemistry

b)

analytical chemistry

c)

physical chemistry

d)

organic chemistry

e)

biochemistry

51.

23. Describe the precision and accuracy of the following measurements: 20.9 cm, 21.0 cm, and 21.0 cm The actual length of the object is 20 cm.

a)

accurate and precise

b)

not accurate and not precise

c)

accurate but not precise

d)

not accurate but precise

52.

24. Mixtures are separated _____, while compounds are separated _____.

a)

chemically, by filtration

b)

by filtration, chemically

c)

chemically, physically

d)

physically, chemically

53.

25. _____ is the closeness of a measurement to a true value.

a)

Accuracy

b)

Precision

c)

Error

d)

Percent Error

54.

26. _____ is data that is in numbers.

a)

Numerical data

b)

Descriptive data

c)

Qualitative data

d)

Quantitative data

55.

27. _____ is the study of mechanisms, rates, and energy transfers that occur when matter undergoes a change.

a)

inorganic chemistry

b)

analytical chemistry

c)

physical chemistry

d)

organic chemistry

e)

biochemistry

56.

28. A characteristic of a scientific theory is that _____.

a)

it is a summary of many results

b)

it is based on a handful of results

c)

it will always stay the same

d)

it can change based on new results or findings

57.

29. _____ is the narrowness of a range of measurements.

a)

Accuracy

b)

Precision

c)

Error

d)

Percent Error

58.

30. A _____ is a property that is based on how much of the substance you have in the sample.

a)

physical property

b)

intensive property

c)

extensive property

d)

chemical property

59.

31. A _____ is a mixture that is evenly mixed.

a)

heterogeneous mixture

b)

homogeneous mixture

c)

suspension

d)

colloid

60.

32. _____ always have the same properties and those properties are unique.

a)

Elements

b)

Compounds

c)

Mixtures

d)

Molecules

61.

32. _____ always have different properties than its components.

a)

Elements

b)

Compounds

c)

Mixtures

d)

Molecules

62.

32. _____ allow the components to retain their properties.

a)

Elements

b)

Compounds

c)

Mixtures

d)

Molecules

63.

33. The Law of Conservation of Matter states that matter is/can _____.

a)

always created and destroyed

b)

be created by not destroyed

c)

not created but can be destroyed

d)

neither created nor destroyed

64.

A _____ is a property that can be observed or measured without changing the substance.

a)

physical property

b)

intensive property

c)

extensive property

d)

chemical property

65.

Which of the following describes flammability?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

66.

Which of the following describes color?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

67.

Which of the following describes cutting wood?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

68.

Which of the following describes wood burns in the presence of oxygen?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

69.

Which of the following describes reactive with acid?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

70.

Which of the following describes melting point?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

71.

Which of the following describes splitting a piece of pie?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

72.

Which of the following describes Tums will neutralize stomach acid?

a)

physical property

b)

physical change

c)

chemical change

d)

chemical property

73.

Which of the following describes flammability?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

74.

Which of the following describes mass?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

75.

Which of the following describes malleability?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

76.

Which of the following describes reacts with bases?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

77.

Which of the following describes volume?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

78.

Which of the following describes density?

a)

physical property and extensive property

b)

physical property and intensive property

c)

chemical property and extensive property

d)

chemical property and intensive property

79.

Which of the following describes the data listed below?

red, shiny, stinky

a)

Numerical data

b)

Descriptive data

c)

Qualitative data

d)

Quantitative data

80.

Which of the following describes the data listed below?

2.0 g, 3.0 cm length, 4.2 mL

a)

Numerical data

b)

Descriptive data

c)

Qualitative data

d)

Quantitative data

81.

Which of the following is a heterogeneous mixture?

a)

stainless steel

b)

milk

c)

orange juice with pulp

d)

tea

82.

Which of the following is a homogeneous mixture?

a)

Lucky Charms

b)

chicken noodle soup

c)

spaghetti

d)

Gatorade

83.

Which of the following is an element?

a)

carbon

b)

chicken noodle soup

c)

sugar

d)

water

84.

Which of the following is an element?

a)

salt

b)

oxygen

c)

orange juice

d)

Kool Aid

85.

Which of the following is a compound?

a)

hydrogen

b)

stainless steel

c)

water

d)

lemonade

86.

Which of the following is a compound?

a)

Coca Cola

b)

Powerade

c)

lead

d)

sodium chloride

87.

35. How many significant figures are in the following measurement?

2103.2 g

a)

2

b)

3

c)

4

d)

5

88.

35. How many significant figures are in the following measurement?

0.000 04020 m

a)

2

b)

3

c)

4

d)

5

89.

35. How many significant figures are in the following measurement?

410,000 cm

a)

2

b)

3

c)

4

d)

5

90.

35. How many significant figures are in the following measurement?

0.00903 J

a)

2

b)

3

c)

4

d)

5

91.

38. Change the following number to scientific notation.

18600

a)

1.86 x 104

b)

1.86 x 103

c)

1.86 x 10-4

d)

1.86 x 10-3

92.

38. Change the following number to scientific notation.

0.000 0425

a)

4.25 x 105

b)

4.25 x 104

c)

4.25 x 10-5

d)

4.25 x 10-4

93.

38. Change the following number to scientific notation.

0.06037

a)

6.037 x 101

b)

6.037 x 102

c)

6.037 x 10-1

d)

6.037 x 10-2

94.

38. Change the following number to scientific notation.

72,090,000

a)

7.209 x 108

b)

7.209 x 107

c)

7.209 x 10-8

d)

7.209 x 10-7

95.

39. Change from scientific notation to floating decimal notation.

1.98 x 10-6

a)

0.000 00198

b)

0.000 000 198

c)

1,980,000

d)

198,000

96.

39. Change from scientific notation to floating decimal notation.

3.47 x 103

a)

0.00347

b)

3,470

c)

34,700

d)

0.000 347

97.

39. Change from scientific notation to floating decimal notation.

5.026 x 104

a)

0.000 5026

b)

502,600

c)

50,260

d)

0.000 05026

98.

39. Change from scientific notation to floating decimal notation.

8.406 x 10-2

a)

0.008406

b)

84.06

c)

840.6

d)

0.08406

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