Matter
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Unit Assessment on Structure of Matter
- 1.All matter is made up of atoms or molecules? True or False
- A.
True
- B.
False
- 2.Are atoms mostly full or mostly empty space?
- A.
Mostly Full
- B.
Mostly Empty Space
- 3.What makes the atoms of one element different from teh atoms of another element?
- A.
The number of protons in the nucleus
- B.
The number of electrons in the outer shell
- C.
The number of neutrons in the nucleus
- D.
The average mass of the isotopes
- 4.How many naturally occuring elements are found?
- A.
1
- B.
15
- C.
92
- D.
118
- 5.A molecule does not need more than one element to be considered a "compound". True or False
- A.
True
- B.
False
- 6.It is possible to have a molecule that is not a compound...True or False
- A.
True
- B.
False
- 7.All compounds are molecules....True or False
- A.
True
- B.
False
- 8.
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Is O2 a molecule?- A.
YES
- B.
NO
- 9.
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Is O2 a compound?- A.
YES
- B.
NO
- 10.
![]()
How many compounds are in the following image?- A.
2
- B.
6
- C.
19
- D.
4
- 11.
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How many molecules are in the following image?- A.
2
- B.
6
- C.
19
- D.
4
- 12.Is air a mixture or a pure substance?
- A.
Mixture
- B.
Pure substance
- 13.Is baking soda (NaHCO3) a mixture or a pure substance?
- A.
Mixture
- B.
Pure substance
- 14.Is apple juice a mixture or a pure substance?
- A.
Mixture
- B.
Pure substance
- 15.Is Aluminum (Al) a mixture or a pure substance?
- A.
Mixture
- B.
Pure substance
- 16.Is 100% pure orange juice a mixture or a pure substance?
- A.
Mixture
- B.
Pure substance
- 17.Is blood a heterogeneous or a homogenous mixture?
- A.
Homogeneous
- B.
Heterogeneous
- 18.Is a oil and water mixture heterogeneous or a homogenous mixture?
- A.
Homogeneous
- B.
Heterogeneous
- 19.What is it called when multiple pure substances are added together?
- A.
Compound
- B.
Element
- C.
Mixture
- D.
Molecule
- 20.What are the only two types of pure substances?
- A.
Elements and compounds
- B.
Elements and atoms
- C.
Atoms and molecules
- D.
Heterogeneous and homogeneous
- 21.Most of the hot flavor in peppers comes from capsaicin, C18H27NO3, Capsaicin is a(n)
- A.
Element
- B.
Pure substance
- C.
Diatomic molecule
- D.
Mixture
- 22.Changing the amount of energy or pressure will affect the states of matter
- A.
True
- B.
False
- 23.Which of the following is not a state of matter?
- A.
Solid
- B.
Gas
- C.
Condesate
- D.
Liquid
- 24.
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What is the following state of matter?- A.
Solid
- B.
Liquid
- C.
Gas
- 25.The particles in a liquid and gas are always in motion but the particles in a solid stop moving? T/F
- A.
True
- B.
False
- 26.When a substances goes from a solid to a liquid it is called….
- A.
Melting
- B.
Deposition
- C.
Sublimation
- D.
Freezing
- 27.When a substance goes from a gas to a solid it is called…
- A.
Melting
- B.
Deposition
- C.
Sublimation
- D.
Freezing
- 28.What is dry ice going from a solid directly to a gas an example of?
- A.
Melting
- B.
Deposition
- C.
Sublimation
- D.
Freezing
- 29.Water found on the outside of a glass is called what?
- A.
Melting
- B.
Vaproization
- C.
Condensation
- D.
Freezing
- 30.Do chemical or physical properties involve forming a new substance?
- A.
Chemical
- B.
Physical
- 31.When a substance changes from a liquid to a gas it loses mass. T/F
- A.
True
- B.
False
- 32.Is energy gained or lost during sublimation?
- A.
Gained
- B.
Lost
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