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Intro To Matter Test Review
Test Description: Matter, Elements, Compounds, Mixtures, States of Matter, Phase Change, Atomic Structure
Instructions: Answer all questions to get your test result.
1) Which of the following is TRUE?
A
Pure substances do not contain atoms
B
Atoms combine to form compounds
C
Compounds form larger atoms
D
Compounds are found inside atoms
2) One difference between mixtures and pure substances is that
A
mixtures are made of one type of atom.
B
pure substances have no chemical bonds.
C
mixtures can be physically separated.
D
pure substances can be physically separated.
3) How many of the listed substances are elements? HCl, S, Fe, Cu, Au, CaO, NaOH, NaCl, Al
A
5
B
3
C
6
D
4
4) Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different...
A
elements
B
molecules
C
complexes
D
compounds
5) Which substances are compounds? Iron (Fe), Sodium Chloride (NaCl), Carbon Dioxide (CO2), Aluminum (Al)
A
Iron and Carbon Dioxide
B
Sodium chloride and Carbon dioxide
C
Iron and Aluminum
D
Aluminum and Sodium chloride
6) Brass (like a trumpet) is mixtures of copper and zinc. Which best describes brass?
A
element
B
Heterogeneous mixture
C
Homogeneous mixture
D
Pure substance
7) Under a microscope, sand looks like different types of rocks. It would best be categorized as...
A
Homogeneous mixture
B
Pure substance
C
Heterogeneous mixture
D
element
8) Air is made up of gases like carbon dioxide, oxygen, and nitrogen. Air is a
A
Mixture of pure substances
B
Compound made of elements
C
Mixture of compounds
D
Pure substance made of elements
9) When two or more substances combine, but each keeps its own properties, the new combination is called a(an)
A
element
B
mixture
C
pure substance
D
compound
10) Which of the following best describes ice?
A
Particles are farther apart than liquid or steam
B
the particles are somewhat clumped, but do not have a recognizable pattern
C
Particles have an arrangement that is extremely random
D
Particles are packed together very closely
11) Which of the following would have the least orderly particle arrangement?
A
Gold (solid)
B
Helium (gas)
C
Milk (liquid)
12) Starting with an ice cube, name the states of matter you would see, in order, as the ice was heated?
A
Liquid, solid, gas
B
Solid, liquid, gas
C
Solid, gas, liquid
D
Gas, liquid, solid
13) What needs to be added to a substance to get it to change from a solid to a liquid to a gas?
A
chemical energy
B
plasma
C
heat energy
D
atoms
14) Which is the state of matter with the following characteristics? - Has a definite, fixed volume. - Has a variable shape. - Particles are constantly moving and sliding by one another.
A
solid
B
gas
C
liquid
15) Which is the state of matter with the fastest moving particles?
A
gas
B
solid
C
liquid
16) How many protons would Aluminum have?
A
27
B
13
C
26
D
12
17) As matter changes state from gas to liquid, which of these statements is true?
A
The attractive force between the particles decreases.
B
The particles slow down.
C
The particles get farther apart.
D
The particles speed up.
18) How many neutrons would Neon have?
A
20.18
B
15
C
10
D
20
19) How would you calculate an atom’s atomic mass?
A
Add protons and electrons
B
Subtract protons from neutrons
C
Subtract atomic mass from number of electrons
D
Add protons and neutrons
20) How many electrons would a neutral atom of Calcium have?
A
40
B
20
C
20.08
D
40.08
*select an answer for all questions
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