Chemical Reactions 2 Question Preview (ID: 13019)
Evidence Of A Chemical Reaction, Mixtures, Compounds, And Elements Based On Arizona Standards.
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Which of the following substances is an element?
a) propane
b) gold
c) salt
d) brass
Which of the following is a compound?
a) calcium
b) magnesium
c) copper
d) acetone
Which is a compound?
a) air
b) sucrose
c) coffee
d) lettuce
Which of the following substances is an element?
a) steel
b) sodium
c) butane
d) acetone
Which of the following is a compound?
a) ethanol
b) carbon
c) helium
d) potassium
Which of the following is a mixture?
a) ammonia
b) helium
c) vinegar
d) graphite
Which of the following is a mixture?
a) ice
b) nitrogen
c) air
d) carbon dioxide
Which of the following is a heterogeneous mixture?
a) vegetable oil
b) beach sand
c) vinegar
d) seawater
Which question is most appropriate when trying to identify whether a mixture is homogeneous?
a) Does the mixture have a uniform appearance?
b) Is the mixture heavy or light?
c) Does the mixture contain any bubbles?
d) Is the mixture warm or cool?
Which is a homogeneous mixture?
a) cereal
b) soil
c) spaghetti sauce
d) toothpaste
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