GR9 REACTIONS by Lizelle Swanepoel https://padlet.com/lizellexs/1g7k3cft52v9xrwk en-us 2022-03-08 07:28:45 UTC 2026-04-11 20:44:29 UTC hello@padlet.com https://padlet.net/icons/png/1f9ea.png DEFINITIONS lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455365 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455365 FURTHER NOTES lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455366 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455366 REACTIONS lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455368 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455368 FAST ONES lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455369 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455369 BALANCING EQUATIONS STEP BY STEP lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455370 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455370 EXERCISE ON BALANCING lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455371 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455371 REVISION WORKSHEET lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455374 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455374 MEMO TO WORKSHEET lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455375 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455375 RUSTING OF IRON lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455377
What are the conditions required for rusting How do you prevent rusting?
  • The presence of water and oxygen is essential for the rusting of iron. 
  • Impurities in the iron, the presence of water vapor, acids, salts and carbon dioxide hastens rusting. 
  • Pure iron does not rust in dry and carbon dioxide free air. 
  • It also does not rust in pure water, free from dissolved salts.
  • 9 Ways to Prevent Rust
  1. Use an Alloy. Many outdoor structures, like this bridge, are made from COR-TEN steel to reduce the effects of rust. 
  2. Apply Oil. 
  3. Apply a Dry Coating. 
  4. Paint the Metal. 
  5. Store Properly. 
  6. Galvanize (coating iron with a protective layer of zinc). 
  7. Blueing (creating a thin protective shell around it). 
  8. Powder Coating.

]]> 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455377 METALS BURNING AND REACTING WITH OXYGEN: WHAT ARE THE COLOURS THEY BURN WITH? lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455378 STUDY THESE]]> 2022-03-08 07:28:45 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083455378 REACTIONS - NOTES lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083459021 2022-03-08 07:31:37 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083459021 REACTION OF METAL WITH OXYGEN lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083459180 2022-03-08 07:31:44 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/2083459180 WHY DO ELEMENTS REACT? FOR: lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804018575 2026-02-26 19:25:01 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804018575 COVALENT BONDING lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804021018 2026-02-26 19:27:17 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804021018 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804023299 2026-02-26 19:29:20 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804023299 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804024081 2026-02-26 19:30:08 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804024081 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804025472 2026-02-26 19:31:24 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804025472 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804027404 2026-02-26 19:32:56 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804027404 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804028179 2026-02-26 19:33:39 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804028179 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804029273 2026-02-26 19:34:41 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804029273 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804029938 2026-02-26 19:35:26 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804029938 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804030665 2026-02-26 19:36:09 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804030665 WRITING CHEMICAL FORMULAE lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804036688 2026-02-26 19:41:44 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804036688 POLYATOMIC IONS (GROUP IONS) lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804039769 2026-02-26 19:44:20 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804039769 Exercise: Write the chemical formula for these compounds lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804054956 2026-02-26 19:59:27 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804054956 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804055919 2026-02-26 20:00:36 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804055919 SLOW ONES lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804068914 2026-02-26 20:14:29 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804068914 REACTIONS lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804083080 2026-02-26 20:31:11 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804083080 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804087113 2026-02-26 20:35:51 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804087113 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804094450 2026-02-26 20:45:43 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3804094450 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3826867618 2026-03-16 09:42:18 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3826867618 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3827108000 2026-03-16 13:10:38 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3827108000 lizellexs https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3862607527 2026-04-11 20:44:28 UTC https://padlet.com/lizellexs/1g7k3cft52v9xrwk/wish/3862607527