Types of Reactions + Predicting Products

  • Synthesis: Two things combining into one. More reactants than products.

  • Decomposition: One thing falling apart into two. More products than reactants.

  • Combustion: Burning. Usually reacts Hydrocarbon and O2 to create CO2 and H2O

  • Single Replacement: Swapping one element. Reactants: One Element and a Compound. Products: One Element and One Compound, but different from reactants.

  • Double Replacement: Swapping two elements. Reacts 2 compounds and produces 2 different compounds.

    • In Replacement RXNs, must replace cations with other cations and anions with other anions.

    • All neutral compounds must have a cation and an anion when finished, and in the cation then anion order.

    • New subscripts needed

    • Remember diatomic elements

Predicting Products

  1. If given words, convert into formulas.

    1. Cross over neutral compounds

    2. Diatomics

  2. Identify reaction

  3. Write Products

  4. Balance Equation

Activity Series of Metals

  • Metals can replace other metals if they are above the metals they are trying to replace.

  • Metals above hydrogen can replace hydrogen in acids.

  • Metals from sodium upward can replace hydrogen in water.

    • Lithium

    • Potassium

    • Calcium

    • Sodium

    • Magnesium

    • Aluminum

    • Zinc

    • Chromium

    • Iron

    • Nickel

    • Lead

    • Hydrogen

    • Bismuth

    • Copper

    • Mercury

    • Silver

    • Platinum

    • Gold

Activity Series of Halogens

  • Halogens can replace other halogens in compounds if they are above the halogen they are trying to replace. This is shown in the periodic table.

    • Fluorine

    • Chlorine

    • Bromine

    • Iodine

  Net Ionic Equations