Back to marketplace

Unit 4

No description yet. This curated deck is ready for daily study.

Total cards: 8•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (8)

#1
Front (Question)

What is electrolysis?

Back (Answer)

The decomposition of an ionic compound, when molten or in aqueous solution (electrolyte), by the passage of an electric current

#2
Front (Question)

What is the positive electrode?

Back (Answer)

Anode

#3
Front (Question)

What is the negative electrode?

Back (Answer)

Cathode

#4
Front (Question)

What are electrodes usually made of?

Back (Answer)

Platinum or graphite

#5
Front (Question)

Why are metal objects electroplated?

Back (Answer)

• Improve appearance • More resistance to corrosion

#6
Front (Question)

How does a hydrogen-oxygen fuel cell produce electricity?

Back (Answer)

Uses hydrogen and oxygen to produce electricity with water as the only chemical product.

#7
Front (Question)

Advantages of Hydrogen-Oxygen Fuel Cells

Back (Answer)

• Less pollution • High energy efficiency • Less noise pollution

#8
Front (Question)

Disadvantages of Hydrogen-Fuel cells

Back (Answer)

• Challenges in storage (due to gaseous state) • Expensive • Limited filling infrastructure • Pollution from manufacture