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