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