AnswersIL-Physical Science A-CRUnit Test

Acids and Bases in Solution Answers

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Sakura tested the pH of several solutions. Which substances are acidic? Check all that apply.

A
cola-flavored soda: 2.6
B
cranberry juice: 2.9
C
dish soap: 7.3
D
pickle juice: 5.5
E
seawater: 8.0
F
lye soap: 13.0
2
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The human stomach is an extremely acidic environment. This allows the stomach to break down food so nutrients can be absorbed as it moves through the digestive system. Stomach acid is more acidic than lemon juice, which has a pH of around 2.0.Which could possibly be the pH of gastric acid?

A
3.5
B
7
C
1.2
D
9.1
3

Hydrochloric acid (HCl) is combined with cesium hydroxide (CsOH) in a neutralization reaction.Which ions will combine to form a salt? Check all that apply.

A
H+
B
H3O+
C
Cl-
D
Cs+
E
OH-
4

Question text not available

Answer:

salt

5

What can he conclude about the pH of each sample?

Answers:
Glass cleaner is .:basic
Aspirin is .:acidic
Sugar water is .:neutral
6

What can he conclude about the pH of each sample?

Answers:
Glass cleaner is .:basic
Aspirin is .:acidic
Sugar water is .:neutral
7

✔ acidic basicneutral

A
✔ acidic
B
basic
C
neutral
8

acidicbasic✔ neutral

A
acidic
B
basic
C
✔ neutral
9

Question text not available

Answer:

B

10

Yasmin is testing an unknown solution to determine whether it is an acid or a base. She dips red litmus paper in the solution. It remains red. What can she conclude about the sample?

A
It is an acid.
B
It is a base.
C
It is not an acid.
D
It is not a base.

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