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Mixtures And Solutions #2
Test Description: Mixtures and solutions
Instructions: Answer all questions to get your test result.
1) Saturated is a term used to describe
A
solubility
B
polarity
C
pH
D
concentration
2) Dilute is a term used to describe
A
concentration
B
pH
C
polarity
D
solubility
3) Evaporation, a physical change, could be used to separate the components of a(n)
A
substance
B
element
C
mixture
D
compound
4) A pH meter contains electrodes that are sensitive to the
A
hydronium ion concentration in a solution
B
color change of bromthymol blue
C
hydroxide ion concentration in a solution
D
solubility of solutes in solution
5) For something to be classified as a substance rather than a mixture, its component parts must be
A
present in variable amounts
B
physically mixed
C
chemically bonded
D
visible to the unaided eye
6) An indicator shows a solution's pH by changing
A
temperature
B
size
C
color
D
shape
7) Temperature and pressure are two factors that can change the
A
concentration of a solution
B
speed that solutes dissolve
C
solubility of a solute
D
polarity of a molecule
8) What tells us how much solute has dissolved?
A
clarity
B
polarity
C
solubility
D
concentration
9) Which is not a way that mixtures are different from compounds?
A
they can be separated by physical means
B
they are physically mixed
C
their composition varies
D
they contain atoms
10) Which phrase describes the parts of a heterogeneous mixture but not the parts of a solution?
A
evenly mixed at the atomic level
B
single type of atom
C
chemically bonded
D
unevenly mixed
*select an answer for all questions
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