ID Chemical Reactions Review and Practice

Synthesis Reactions always have multiple reactants and ONLY ONE PRODUCT!

C + O₂ --> CO₂

CaO + H₂O --> Ca(OH)₂

Fe + O₂ --> FeO

S + O₂ --> SO₂

Decomposition Reactions always have ONE REACTANT and multiple products.

HgO --> Hg + O₂

K₂CO₃ --> K_2O + CO₂

KOH --> K₂O + H₂O

NaClO₃ --> NaCl + O₂

Double Replacement Reactions have two compounds (two big letters or two elements) on both the reactant and product side.

Examples:

KNO₃ + AlCl₃ → Al(NO₃)₃ + KCl

BaCl₂ + MgSO₄ → BaSO₄ + MgCl₂

Na₂SO₄ + SrCl2 → NaCl SrSO₄

Single Replacement Reactions have one compound and one element (one big letter) on both the reactant and product side.

Examples:

K + NaCl → KCl + Na

Br₂ + LiF → F₂ + LiBr

Mg + AlCl₃ → Al + MgCl₂

Combustion Reactions have two reactants and two products but only contain C, H, O. They always have the products of H₂O and CO₂

Examples:

C₃H₈ + O₂ → CO₂ + H₂O

CH₃OH + O₂ → CO2 + H₂O

C₃H₆O + O₂ → CO₂ + H₂O