G10 Chem Quick Review

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This is a brief summary of major concepts in general chemistry. Nothing earth-shattering, but the in-class version contains a number of embedded videos, which made that version too big to upload.

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G10 Chem Quick Review

  1. 1. ChemReviewGrade 10 MYP Science Image: http://departments.ozarks.edu
  2. 2. KNOW YOUR TABLE!
  3. 3. PERIODICITY: PatternsPERIODS GROUP S Image: http://en.wikipedia.org
  4. 4. ChemicalReactions• Rearrange matter • Release or absorb energy • Depend on reactivity Image: http://www.iun.edu Image: http://dl.clackamas.edu Image:http://evans-experientialism.freewebspace.com Image: http://www.klbict.co.uk
  5. 5. Rearranging Matter• Bonding = movement + use of electrons• Law of Conservation of Matter • neither created nor destroyed Image: http://people.seas.harvard.edu • products = reactants Image: http://www.iun.edu
  6. 6. Kinds of chemicalreactionsSynthesisDecomposition1x Replacement2x ReplacementCombustion: burning! CxHy + O2 --> CO2 + H2O
  7. 7. SYNTHESIS: building• Create complex compounds from simpler ones • A + B → AB • 8Fe + S → 8FeS 8 • 2Mg + O → 2MgO 2
  8. 8. DECOMPOSITION: • Complex compounds --> simpler onesbreaking down • CD → C + Dbreaking+ O • 2H O → 2H 2 2 down 2 • BaCl → Ba + Cl 2 2
  9. 9. REPLACEMENT: trading• Single: E + FG --> EG + F • Mg + 2 H O ---> Mg(OH) + H 2 2 2• Double: HI + JK --> HK + JI • Pb(NO ) + 2 KI ---> PbI + 2 KNO 3 2 2 3
  10. 10. COMBUSTION: burning!• Needs oxygen• Gives off CO , H O, and heat 2 2• C H + O --> CO + H O x y 2 2 2• C H + 12O ---> 10CO + 4H O 10 8 2 2 2
  11. 11. ACID-BASE: moving • Acid + Base --> salt + waterions • HA + BOH ---> BA + H O 2 • HBr + NaOH ---> NaBr + H O 2 Image: http://faculty.sdmiramar.edu
  12. 12. REACTIVITY: ready to • Depends on electronegativity + metallic characterreact by electron configuration (arrangement) • Determined QuickTime™ and a decompressor are needed to see this picture.

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