HYDROLYSIS

What is the main purpose of the Hofmann voltameter?

• To mix chemicals

• To measure temperature

• To split water into hydrogen and oxygen

• To generate electricity

What is the process called when electricity splits water molecules?

• Evaporation

• Condensation

• Electrolysis

• Combustion

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Why is there more hydrogen gas collected than oxygen in the Hofmann voltameter?

• Oxygen evaporates quickly

• Hydrogen is more reactive

• Water has more hydrogen atoms than oxygen atoms

• Hydrogen is heavier than oxygen

What does the popping sound produced when hydrogen gas ignites indicate?

• Hydrogen is non-flammable

• Hydrogen reacts slowly and safely with oxygen

• Hydrogen is highly flammable and reacts explosively under the right conditions

• Hydrogen turns into a liquid when burned

What sound does hydrogen make when it is ignited?

• No sound

• A popping sound

• A whistling sound

• A loud bang

What happens to a glowing splinter in pure oxygen?

• It goes out

• It changes color

• It glows brighter and bursts into flame

• It makes a popping sound