Chemical Equations (Involving Ions)

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Chemistry

Atoms

GCSE Combined Science

Edexcel

Chemistry

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6 Terms

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Ions

Charged atoms or molecules

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Chemical Formulas of some Common Molecules

  • Water - H2O

  • Ammonia - NH3

  • Carbon dioxide - CO2

  • Hydrogen - H2

  • Chloride - Cl2

  • Oxygen - O2

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Chemical formulas of ions made up of groups of atoms

  • Ammonium - NH4+

  • Hydroxide - OH-

  • Nitrate - NO3-

  • Carbonate - CO32-

  • Sulphate - SO42-

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What can you write for any reaction involving ions that happens in solution?

Ionic Equations

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What is included in an ionic equation?

Only the reacting particles (and the products they form)

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How do you write an ionic equation?

Look at the balanced symbol equation and take out any aqueous ions that are present on both sides