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Elements, Compounds, And Mixtures
Test Description: Basic chemistry
Instructions: Answer all questions to get your test result.
1) Which of the following is made of one type of atom?
A
Compound
B
Mixture
C
Element
D
Solution
2) Which of the following is a substance made of several molecules mixed evenly throughout, so you can not see the different parts?
A
homogeneous mixture
B
heterogeneous mixture
C
compound
D
element
3) Which of the following substances is a compound?
A
oxygen
B
hydrogen
C
sugar water
D
carbon dioxide
4) Which of the following subatomic particles is shared between atoms when they bond?
A
electrons
B
protons
C
nuclei
D
neutrons
5) Two or more different elements bonded together...
A
compound
B
mixture
C
solution
D
atom
6) When water is used to dissolve other substances, water is being used as a ___________.
A
solvent
B
solution
C
precipitate
D
solute
7) Which of the following pH levels would be an acid?
A
7.0
B
10.0
C
2.5
D
9.4
8) What parts of an atom are found inside the nucleus?
A
protons and neutrons
B
neutrons and electrons
C
ions and electrons
D
electrons and protons
9) How are different elements identified?
A
by the number of electrons
B
by the number of neutrons
C
by their weights
D
by the number of protons
10) When a substance can be easily separated into different parts, it is probably a ____________.
A
compound
B
pure substance
C
element
D
mixture
*select an answer for all questions
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