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