Electrochemistry FTV2A

What is the study of the relationship between electricity and chemical reactions called?

• Thermodynamics

• Electrochemistry

• Kinetics

• Photochemistry

Which of the following is a common electrode material?

• Copper

• Aluminum

• Platinum

• Iron

What type of compounds are electrolytes?

• Organic compounds

• Ionic compounds

• Metallic compounds

• Covalent compounds

In a reduction reaction, a species:

• Loses hydrogen

• Gains oxygen

• Gains electrons

• Loses electrons

What is the oxidation number of Na+?

• -1

• +2

• +1

• 0

In a neutral compound, the total oxidation number of all atoms equals:

• The number of atoms

• 1

• 0

• The charge of the ion

What is the role of a salt bridge in a galvanic cell?

• To generate electricity

• To maintain electrical neutrality

• To increase temperature

• To prevent oxidation

In the Daniell cell, which metal is oxidized?

• Silver

• Zinc

• Copper

• Lead

What is the standard cell potential for a spontaneous reaction?

• Zero

• Undefined

• Negative

• Positive

Which of the following reactions is an example of oxidation?

• Cu2+ + 2e- → Cu

• Zn → Zn2+ + 2e-

• Ag+ + e- → Ag

• Fe2+ + 2e- → Fe