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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 protons.
B
The electrons and protons cancel each other out.
C
The charge is dependent on the number of neutrons.
D
The charge is dependent on the number of electrons.
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
elements
B
mixtures
C
atoms
D
compounds
6) Which of the following has a negative charge?
A
protons
B
neutrons
C
atoms
D
electrons
7) Which of the following has a positive charge?
A
atoms
B
neutrons
C
protons
D
electrons
8) Which of the following has no charge?
A
neutrons only
B
protons only
C
neutrons and atoms
D
electrons only
9) _____________ all have the same atoms.
A
compounds
B
heterogeneous mixtures
C
homogeneous mixtures
D
elements
10) Which of the following describes the relationship of atoms best?
A
Elements and compounds are similar to atoms.
B
Compounds and mixtures do not have any atoms.
C
Mixtures and elements are similar to 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 elements in a fixed pattern.
B
It contains two or more types of particles which are easily distinguished.
C
It is composed of two or more substances in which particles are evenly blended.
D
It contains only one type of atom.
12) Which best represents a homogeneous mixture?
A
soil from the garden
B
nitrogen gas and oxygen gas
C
water and sand
D
sand and iron particles
13) Which could best be separated into simpler substances by filtration and evaporation?
A
compound
B
mixture
C
element
D
atom
14) Which is a homogeneous mixture?
A
pizza
B
concrete
C
woven fabric
D
vinegar
15) Which of these best describes a change that is physical?
A
yarn being knitted into a sweater
B
the metal on a bicycle forming rust
C
grass capturing the energy from sunlight
D
the engine from a tractor being started
16) Which is one characteristic of some pure substances?
A
They cannot be changed into simpler substances.
B
They contain different types of molecules.
C
They can only be elements.
D
They can be homogeneous or heterogeneous.
17) How many atoms of oxygen are in a molecule of glucose, C6H12O6?
A
6
B
12
C
1
D
24
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 solvent has been created.
B
A solution has been created.
C
A new element has been created.
D
A compound has been created.
19) An element, X, contains 14 protons, 14 neutrons, and 14 electrons. What element is this?
A
Silicon
B
Carbon
C
Calcium
D
Hydrogen
20) Which is a substance that is held together by chemical bonds?
A
mixture
B
compound
C
solution
D
element
*select an answer for all questions
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