Acids, Bases And PH Scale Question Preview (ID: 61639)
Review Of Acids, Bases And PH Scale.
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The pH scale shows how acidic or how basic these compounds are. The lower the pH, the more acidic a compound is. The higher the pH, the more basic it is. Sodium hydroxide, a compound commonly found in drain cleaners, has a pH of 13.
a) highly basic
b) highly acidic
c) slightly basic
d) slightly acidic
The pH scale shows whether a compound is acidic, basic, or neutral. Sodium chloride, which is table salt, is neutral. Neutral compounds are neither acidic nor basic. From the scale, what is the pH of sodium chloride?
a) 0
b) 7
c) 10
d) 14
The label on a chemical in a science laboratory reads, “Strong Acid.” Based on this label, what can astudent best determine about the chemical?
a) It has a low pH
b) It is a clear liquid
c) It has a high density
d) It has a low melting point
A reaction between an acid and a base is called neutralization. What is the resulting product of this neutralization?
a) A weak acid
b) A salt
c) A weak base
d) A solution
On the pH scale, where can you find strong acids and strong bases?
a) the middle of the pH scale
b) On either side of the pH scale
c) On the right side of the pH scale
d) On the left side of the pH scale
Acid rain occurs in some regions on Earth and has a negative impact on plants and animals. Normal rainwater has a pH between 5.5 and 6. Which of the following is most likely to be the pH of rainwater thatis classified as acid rain?
a) pH above 7
b) pH of 7
c) pH of 6
d) pH below 5
In a particular solution, the concentration of several ions is measured. The solution is found to have a high concentration of Hydronium ions (H30+), and a low concentration of Hydroxl (OH-) ions. The pH of the solution is most likely which of the
a) 2
b) 7
c) 8
d) 12
Oven cleaner is a highly caustic chemical that reacts with baked on foods. It is dangerous to the touch and has a very slippery feel. What is the likely pH of oven cleaner?
a) Below 4
b) Around 7
c) Above 10
d) Between 5 and 7
Which of these is a property of acidic solutions?
a) they taste sour
b) they feel slippery
c) they are in many cleaning products
d) they taste bitter
Four substances were test for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?
a) lemon juice, milk, bakng soda, bleach
b) bleach, baking soda, milk, lemon juice
c) milk, lemon juice, baking soda, bleach
d) baking soda, bleach, lemon juice, milk
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