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ECM Test Review
Test Description: Review for chemistry test on Elements, Compounds, and Mixtures
Instructions: Answer all questions to get your test result.
1) Subatomic particle with a positive charge
A
Neutron
B
Electron
C
Positron
D
Proton
2) Subatomic particle with a negative charge
A
Proton
B
Electron
C
Neutron
D
Negatron
3) Subatomic particle with no charge
A
Proton
B
Sweden
C
Electron
D
Neutron
4) Subatamic particles in the nucleus of an atom
A
Protons and posotrons
B
Proton and Electron
C
Neutron and Electron
D
Proton and Neutron
5) Two or more substances that are physically combined are called a ________
A
Element
B
Atom
C
Compound
D
Mixture
6) 2 pure substances in chemistry are _____________.
A
Elements and mixtures
B
Elements and compounds
C
Compounds and Mixtures
D
Atoms and compounds
7) Gold
A
He
B
Au
C
Go
D
Cu
8) Potasium
A
K
B
Po
C
Ag
D
Au
9) Calcium Chloride: Element, Compound, or Mixture
A
Compound
B
Element
C
Mixture
10) Air: Element, Compound, or Mixture
A
Element
B
Mixture
C
Compound
11) Copper: Element, Compound, or Mixture
A
Compound
B
Mixture
C
Element
12) Metal, Metalloid, or Nonmetal: Dull appearance, Brittle
A
Nonmetal
B
Metalloid
C
Metal
13) Metal, Metalloid, or Nonmetal: Solid at room temp, Shiny, Malleable
A
Nonmetal
B
Metal
C
Metalloid
14) How many elements and atoms are in the following compound: CaPO₄
A
Elements = 4, Atoms = 6
B
Elements = 3, Atoms = 6
C
Elements = 3, Atoms = 4
D
Elements = 4, Atoms = 4
15) How many elements and atoms are in the following compound: 2 H₂SO₄
A
Elements = 2, Atoms = 12
B
Elements = 3, Atoms = 14
C
Elements = 3, Atoms = 6
D
Elements = 2, Atoms = 6
16) Homogeneous mixtures are ____________ throughout, whereas Heterogeneous mixtures are ______________ throughout.
A
Uniform; Bonded
B
Different; Uniform
C
Bonded; Uniform
D
Uniform; Different
17) What type of mixture are chocolate chip cookies?
A
Delicious
B
Heterogeneous
C
Tasty
D
Homogeneous
*select an answer for all questions
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