What is the formula for the hydroxide ion?

Question

What is the formula for the hydroxide ion?

A. OH2

B. H2O

C. HO

D. OH-

Correct Answer :

D. OH-

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Comment

How many protons are in the nucleus of an atom with an atomic number of 20?

A. 10

B. 20

C. 40

D. 60

Discuss this answer

Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

Discuss this answer

The process of a liquid changing into a gas at the surface is called:

D. Fusion

Discuss this answer

Which element is essential for all organic compounds?

A. Carbon

B. Oxygen

Discuss this answer

What is the chemical formula for water?

A. H2O

B. CO2

C. CH4

D. O2

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Which of the following is a nonmetal?

A. Sodium

C. Iron

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What is the atomic number of carbon?

A. 12

B. 14

C. 6

D. 8

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What is the chemical formula for acetic acid, found in vinegar?

A. HCl

B. H2SO4

D. HNO3

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How many electrons are in the outermost energy level (valence shell) of a neutral oxygen atom?

A. 2

B. 6

C. 8

D. 4

Discuss this answer

Which element is commonly used in batteries?

D. Zinc

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What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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The atomic number of an element is determined by the number of:

Discuss this answer

What is the chemical formula for table salt?

A. NaCl

B. H2O

C. CO2

D. CH4

Discuss this answer

What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

Discuss this answer

Which type of bond involves the sharing of electrons?

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What is the chemical symbol for potassium?

A. Po

B. Pa

C. K

D. Ke

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Which of the following is a greenhouse gas produced by human activities?

A. Oxygen

D. Argon

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What is the chemical formula for sulfur dioxide?

A. SO2

B. H2SO4

C. SO3

D. H2S

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Which element is the most abundant in Earth's crust?

A. Oxygen

C. Carbon

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Which of the following is a halogen?

A. Sodium

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What is the chemical formula for carbon dioxide?

A. CO2

B. CH4

C. CO

D. C2O

Discuss this answer

Which gas is produced during photosynthesis?

A. Oxygen

Discuss this answer

The process of a substance changing from a gas to a liquid is called:

D. Fusion

Discuss this answer

What is the chemical formula for aspirin?

B. CH4

C. C9H8O4

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What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd

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What is the chemical formula for sodium chloride?

A. NaCl

B. Na2Cl

C. NaCl2

D. Na2Cl2

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What is the chemical formula for ammonia?

A. NH4

B. NH2

C. NH3

D. NH

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What is the chemical formula for sodium hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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Which of the following is a metalloid?

A. Boron

B. Oxygen

D. Sulfur

Discuss this answer

Which gas is responsible for the rotten egg smell?

A. Oxygen

Discuss this answer

Answer 1

C. Hydrogen

Answer 2

D. Nitrogen

Answer 3

A. Evaporation

Answer 4

B. Condensation

Answer 5

C. Sublimation

Answer 6

C. Hydrogen

Answer 7

D. Nitrogen

Answer 8

B. Chlorine

Answer 9

D. Calcium

Answer 10

C. CH3COOH

Answer 11

A. Calcium

Answer 12

B. Lithium

Answer 13

C. Aluminum

Answer 14

A. Protons

Answer 15

B. Electrons

Answer 16

C. Neutrons

Answer 17

D. Nucleons

Answer 18

A. Ionic bond

Answer 19

B. Covalent bond

Answer 20

C. Metallic bond

Answer 21

D. Hydrogen bond

Answer 22

B. Carbon dioxide

Answer 23

C. Nitrogen

Answer 24

B. Silicon

Answer 25

D. Hydrogen

Answer 26

B. Fluorine

Answer 27

C. Potassium

Answer 28

D. Calcium

Answer 29

B. Carbon dioxide

Answer 30

C. Nitrogen

Answer 31

D. Hydrogen

Answer 32

A. Sublimation

Answer 33

B. Condensation

Answer 34

C. Evaporation

Answer 35

A. C6H12O6

Answer 36

D. C12H22O11

Answer 37

C. Nitrogen

Answer 38

B. Carbon monoxide

Answer 39

C. Sulfur dioxide

Answer 40

D. Hydrogen sulfide

What is the formula for the hydroxide ion?

Correct Answer :

Show all AP Chemistry MCQ

Related Questions

How many protons are in the nucleus of an atom with an atomic number of 20?

Which element is essential for the process of respiration?

The process of a liquid changing into a gas at the surface is called:

Which element is essential for all organic compounds?

What is the chemical formula for water?

Which of the following is a nonmetal?

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What is the chemical formula for sodium hydroxide?

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