Across
- 4. We must always keep our classroom __________
- 5. The process in which a substance loses electrons
- 7. A chemical reaction that absorbs energy from its surroundings
- 9. __________ peroxide is commonly used as a bleaching agent which releases oxygen during oxidation
- 10. In respiration, _______ is oxidized to produce energy, carbon dioxide, and water
- 12. _________ is a classic example of oxidation, where iron reacts with oxygen in the presence of water
- 14. A type of chemical reaction in which electrons are transferred between two substances
Down
- 1. A chemical reaction that releases energy from its surroundings
- 2. In silver ________,silver reacts with sulfur compounds in the air forming silver sulfide
- 3. The positive electrode that attracts negative ions from the electrolyte
- 4. The negative electrode that attracts positive ions from the electrolyte
- 6. The number one rule in our classroom is to ________ one another
- 8. The process in which a substance gains electrons
- 11. The process that uses an electric current to drive a non-spontaneous chemical reaction.
- 13. When fuels like _________ burn, they react with oxygen in the air, undergoing redox reaction