Electrolysis of Molten Lead Bromide Quiz

What is the main topic of the video?

• Electrolysis of molten salts

• Properties of lead

• Periodic table trends

• Chemical bonding

What is the charge of bromide ions in molten lead bromide?

• 0

• 3+

• 1-

• 2+

Which electrode is connected to the negative side of the battery?

• Both

• Cathode

• Anode

• Neither

What happens to lead ions at the cathode?

• They gain electrons and form lead metal

• They lose electrons and form lead metal

• They gain electrons and form lead ions

• They lose electrons and form lead ions

What is the term for the gain of electrons?

• Oxidation

• Reduction

• Neutralization

• Precipitation

What is the elemental form of bromine at the anode?

• Br

• Br3

• Br2

• Br-

What is the process called when electrons are lost?

• Condensation

• Sublimation

• Reduction

• Oxidation

What is the overall charge on both sides of a balanced half-equation?

• Equal

• Neutral

• Positive

• Negative

What type of reaction involves both oxidation and reduction?

• Acid-base reaction

• Redox reaction

• Synthesis reaction

• Decomposition reaction

What should be remembered when balancing half-equations?

• Balance neither elements nor charges

• Balance both elements and charges

• Balance only the charges

• Balance only the elements