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Acids And Bases
Test Description: Hydroxide and hydronium ions
Instructions: Answer all questions to get your test result.
1) Boiling, a physical change, can separate the components of a
A
substance
B
element
C
compound
D
mixture
2) Evenly mixed can describe a
A
compound
B
substance
C
heterogeneous mixture
D
solution
3) Matter that is always composed of the same combination of atoms is a
A
heterogeneous mixture
B
substance
C
solution
D
homogeneous mixture
4) Evaporation is a
A
physical change
B
chemical change
5) What 2 factors can affect solubility
A
mass and speed
B
mass and height
C
surface area and stirring
D
temperature and pressure
6) A solution with a pH of 7 would be
A
concentrated
B
acidic
C
base
D
neutral
7) As the concentration of hydronium ions in a solution increases, its pH
A
stays the same
B
increases
C
decreases
D
goes to lunch
8) If a solution's pH went from 5 to 1, how much more acidic would it be?
A
10,000 times
B
40 times
C
10 times
D
4 times
9) A pH meter measures the
A
hydronium ions in a solution
B
solubility of a solution
C
hydroxide ions in a solution
D
concentration of a solution
10) C=m/v is a formula for finding
A
the solubility of the solute
B
the concentration of a solution
C
the composition of a compound
D
the pH of a solution
*select an answer for all questions
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