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Matter, Compounds, Elements, Mixtures
Test Description: This test will help review matter, elements, compounds, and mixtures.
Instructions: Answer all questions to get your test result.
1) The following subatomic particles are inside the nucleus of the atom:
A
Electrons and neutrons
B
Neutrons and protons
C
Protons only
D
Electrons and protons
2) Water is an example of a(n)
A
atom
B
mixture
C
compound
D
element
3) The overall charge of an atom is neutral because _________.
A
The charge is dependent on the number of electrons.
B
The charge is dependent on the number of neutrons.
C
The electrons and protons cancel each other out.
D
The charge is dependent on the number of protons.
4) Examples of pure substances, or ___________ are oxygen, boron and silver.
A
elements
B
mixtures
C
atoms
D
compounds
5) Blood, trail mix, and salad are all examples of ______________.
A
compounds
B
mixtures
C
elements
D
atoms
6) Which of the following has a negative charge?
A
protons
B
electrons
C
neutrons
D
atoms
7) Which of the following has a positive charge?
A
protons
B
atoms
C
electrons
D
neutrons
8) Which of the following has no charge?
A
electrons only
B
protons only
C
neutrons and atoms
D
neutrons only
9) _____________ all have the same atoms.
A
elements
B
heterogeneous mixtures
C
compounds
D
homogeneous mixtures
10) Which of the following describes the relationship of atoms best?
A
Mixtures and elements are similar to atoms.
B
Elements and compounds are similar to atoms.
C
Compounds and mixtures do not have any atoms.
D
Everything in the Universe is made of atoms.
11) Which best describes a heterogeneous mixture?
A
It is composed of two or more substances in which particles are evenly blended.
B
It is composed of two or more elements in a fixed pattern.
C
It contains only one type of atom.
D
It contains two or more types of particles which are easily distinguished.
12) Which best represents a homogeneous mixture?
A
nitrogen gas and oxygen gas
B
soil from the garden
C
sand and iron particles
D
water and sand
13) Which could best be separated into simpler substances by filtration and evaporation?
A
atom
B
compound
C
element
D
mixture
14) Which is a homogeneous mixture?
A
concrete
B
pizza
C
woven fabric
D
vinegar
15) Which of these best describes a change that is physical?
A
grass capturing the energy from sunlight
B
the metal on a bicycle forming rust
C
the engine from a tractor being started
D
yarn being knitted into a sweater
16) Which is one characteristic of some pure substances?
A
They can be homogeneous or heterogeneous.
B
They contain different types of molecules.
C
They cannot be changed into simpler substances.
D
They can only be elements.
17) How many atoms of oxygen are in a molecule of glucose, C6H12O6?
A
6
B
12
C
24
D
1
18) Salt and water are stirred together in a beaker. The solid salt particles seem to disappear in the water. Which is the best explanation for the product that is formed?
A
A compound has been created.
B
A solution has been created.
C
A solvent has been created.
D
A new element has been created.
19) An element, X, contains 14 protons, 14 neutrons, and 14 electrons. What element is this?
A
Hydrogen
B
Silicon
C
Carbon
D
Calcium
20) Which is a substance that is held together by chemical bonds?
A
solution
B
element
C
mixture
D
compound
*select an answer for all questions
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