Happed

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A valid license for package „Erakasutaja 2026/27”, „Õpilane 2026/27”, „Õpilane 2026/27 – isiklik”, „Õpilane 2026/27 SOODUSHIND” or „Õpilane 2026/27: pakett õpetaja e-tundidega” is required to use the kit. Click the link with the package name to learn more about the package and order a license.

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Chapter topics:

  1. Happed
  2. Miks on happed olulised?
  3. Millest tunneme happeid
  4. Hapete koostis
  5. Tugevad ja nõrgad happed
  6. Ohutusnõuded hapete kasutamisel
  7. Happe toime materjalidesse (katse)
  8. Kokkuvõtteks
  9. Küsimused ja ülesanded

A valid license for package „Erakasutaja 2026/27”, „Õpilane 2026/27”, „Õpilane 2026/27 – isiklik”, „Õpilane 2026/27 SOODUSHIND” or „Õpilane 2026/27: pakett õpetaja e-tundidega” is required to use the kit. Click the link with the package name to learn more about the package and order a license.

If you have a valid license, log in to view the chapter.