ECM Test Review Question Preview (ID: 53062)
Review For Chemistry Test On Elements, Compounds, And Mixtures.
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Subatomic particle with a positive charge
a) Proton
b) Electron
c) Neutron
d) Positron
Subatomic particle with a negative charge
a) Negatron
b) Proton
c) Electron
d) Neutron
Subatomic particle with no charge
a) Proton
b) Electron
c) Neutron
d) Sweden
Subatamic particles in the nucleus of an atom
a) Protons and posotrons
b) Neutron and Electron
c) Proton and Electron
d) Proton and Neutron
Two or more substances that are physically combined are called a ________
a) Atom
b) Element
c) Compound
d) Mixture
2 pure substances in chemistry are _____________.
a) Elements and compounds
b) Elements and mixtures
c) Compounds and Mixtures
d) Atoms and compounds
Gold
a) Au
b) He
c) Cu
d) Go
Potasium
a) Au
b) K
c) Ag
d) Po
Calcium Chloride: Element, Compound, or Mixture
a) Element
b) Compound
c) Mixture
d)
Air: Element, Compound, or Mixture
a) Element
b) Compound
c) Mixture
d)
Copper: Element, Compound, or Mixture
a) Element
b) Compound
c) Mixture
d)
Metal, Metalloid, or Nonmetal: Dull appearance, Brittle
a) Metal
b) Metalloid
c) Nonmetal
d)
Metal, Metalloid, or Nonmetal: Solid at room temp, Shiny, Malleable
a) Metal
b) Metalloid
c) Nonmetal
d)
How many elements and atoms are in the following compound: CaPO₄
a) Elements = 3, Atoms = 4
b) Elements = 3, Atoms = 6
c) Elements = 4, Atoms = 4
d) Elements = 4, Atoms = 6
How many elements and atoms are in the following compound: 2 H₂SO₄
a) Elements = 2, Atoms = 6
b) Elements = 2, Atoms = 12
c) Elements = 3, Atoms = 6
d) Elements = 3, Atoms = 14
Homogeneous mixtures are ____________ throughout, whereas Heterogeneous mixtures are ______________ throughout.
a) Uniform; Bonded
b) Uniform; Different
c) Different; Uniform
d) Bonded; Uniform
What type of mixture are chocolate chip cookies?
a) Homogeneous
b) Heterogeneous
c) Delicious
d) Tasty
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