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Q 1/47
Score 0
A solution with a pH of 5.0 _____.
30
has more hydrogen ions (H+) than hydroxide ions(OH-)
has more hydroxide ions(OH-) than hydrogen ions (H+)
is basic
is neutral
Q 2/47
Score 0
Which type of solution is one with a pH of 8?
30
basic
neutral
acidic
47 questions
Q.
A solution with a pH of 5.0 _____.
1
30 sec
Q.
Which type of solution is one with a pH of 8?
2
30 sec
Q.
Acids make litmus paper turn
3
30 sec
Q.
The table shows data from an investigation designed to find a liquid solution that is both as acid and strong electrolyte. Based on the data, a solution that is both an acid and a strong electrolyte is ____________.
4
30 sec
Q.
Based on the graph, ______________ is the only base listed.
5
30 sec
Q.
Two clear solutions are placed in separate beakers. The first solution has a pH of 4, and the pH of the second solution is unknown. When the two solutions are mixed the resulting pH is 5. The second solution must have
6
30 sec
Q.
The pH of a basic solution is
7
30 sec
Q.
The pH of a neutral solution is
8
30 sec
Q.
A basic solution makes the color of litmus paper turn ____________________.
9
30 sec
Q.
Which best describes milk?
10
30 sec
Q.
A household cleaner has a pH around 10. It would be considered a
11
30 sec
Q.
A substance that changes color when exposed to acid or base solutions is called a(n) .
12
30 sec
Q.
Which lists the substances from least to most acidic?
13
30 sec
Q.
What does pH stand for
14
30 sec
Q.
Bleach is a strong base, what is the pH level of bleach?
15
30 sec
Q.
According to the pH range which substance is more acidic than lemon juice
16
30 sec
Q.
Bases are sometimes called alkaline.
17
30 sec
Q.
A neutral solution has equal amounts of H+ and OH-.
18
30 sec
Q.
If I add more water to this setup, what will happen to the pH?
19
30 sec
Q.
The higher the concentration of negative (hydroxide) ions in the solution, the stronger the acid it is.
20
30 sec
Q.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
21
30 sec
Q.
The effect of pH on a certain enzyme is shown in the graph above.
At what pH would the enzyme be most effective?
22
30 sec
Q.
Based on the graph. The most likely result of mixing both enzymes with their substrates in a single test tube is that
23
30 sec
Q.
Based on the graph. Which is a true statement about the relationship between pH and enzyme action?
24
30 sec
Q.
The graph shows the relative rates of action of four enzymes, A, B, C, and D. Which two enzymes would function in a region of the human body having a neutral pH?
25
30 sec
Q.
The graph shows the relative rates of action of four enzymes, A, B, C, and D. A solution with a pH of 6 contains enzyme C and its substrate. If a base is gradually added to this solution, the rate of action of enzyme C would most likely
26
30 sec
Q.
The graph shows the relative rates of action of four enzymes, A, B, C, and D. Which enzyme shows the greatest change in its rate of action with the least change in pH?
27
30 sec
Q.
Using Table M, identify the indicator that is yellow in a solution that has the same pH value as beverage with a pH of 3.
28
30 sec
Q.
Using Table M, identify an indicator that is blue in solutions with a pH of 6.5
29
30 sec
Q.
What is the color of the indicator thymol blue in a solution that has a pH of 9.4?
30
30 sec
Q.
Which indicator is blue in a solution that has a pH of 5.6?
31
30 sec
Q.
Which indicator, when added to a solution, changes color from yellow to blue as the pH of the solution is changed from 5.5 to 7.5?
32
30 sec
Q.
If an unknown solution changes an indicator from colorless to pink, the most likely pH of this unknown solution is
33
30 sec
Q.
Which indicator is yellow in a solution with a pH of 9.3?
34
30 sec
Q.
According to Reference Table M, what is the color of the indicator methyl orange in a solution that has a pH of 2?
35
30 sec
Q.
Which statement correctly describes a solution with a pH of 9?
36
30 sec
Q.
Which pH solution is 10 times acidic than solution has a pH=5?
37
30 sec
Q.
Acids are found on the pH scale between which numbers?
38
30 sec
Q.
A sample of pure water is neutral because it contains
39
30 sec
Q.
An substance that changes color in the presence of an acid or base
40
30 sec
Q.
An unknown substance is added to a solution and the pH increases. The substance is a(n)
41
30 sec
Q.
An unknown substance is added to a solution and the pH decreases. The substance is a(n)
42
30 sec
Q.
A beaker full of acid(pH=2) is added to a beaker full of base (pH=13). The pH of the acid will:
43
30 sec
Q.
Students tested the pH of four different solutions using litmus paper and recorded the observations in the data table Which solution is neutral?
44
30 sec
Q.
The table shows the change in pH that occurred when 100.0 mL of an unknown solution were added to 100.0 mL of hydrochloric acid (HCl) solution (pH=1). What would the pH of solution 3 have to be?
45
30 sec
Q.
The table shows the change in pH that occurred when 100.0 mL of an unknown solution were added to 100.0 mL of hydrochloric acid (HCl) solution (pH=1). Which unknown solution completely neutralized the HCl through a chemical reaction?
46
30 sec
Q.
A solution with a pH of 12 can be decreased to a pH above 7 by adding
