Types of Reactions!!

Five Types of Reactions Synthesis Decomposition Single Displacement Double Displacement Combustion

One Product A + B  AB 2H2 + O2  2H2O Synthesis General Formula: Example: 2H2 + O2  2H2O One Product

Complete & Balance the following reactions: K + Cl2 →   Al + O2 →

Complete & Balance the following reactions: 2K + Cl2 → 2KCl   4Al + 3O2 → 2Al2O3

One Reactant AB  A + B 2NaClO3  2NaCl + 3O2 Decomposition General Formula: AB  A + B Some Examples: 2NaClO3  2NaCl + 3O2 One Reactant

Complete and balance the following reactions: Ca3N2 →   Rb2O →

Complete and balance the following reactions: Ca3N2 → 3Ca + N2   2Rb2O → 4Rb +O2

A + XY  X + AY B + XY  Y + XB Single Displacement OR General Formula: A + XY  X + AY If A is a metal, switch with X OR B + XY  Y + XB If B is a nonmetal, switch with Y

NOTE: A more reactive element can replace a less reactive element, not vice-versa.

Use the Activity Series: Most reactive metals and halogens are at top of chart and can replace anything underneath. Example: Cu + 2AgNO3  2Ag + Cu(NO3)2

Complete and balance the following single-replacement reactions: (Use your activity series): Na + Cu(NO3)2 → Al + Li3N → Cl2 + LiBr2 →

Complete and balance the following single-replacement reactions: (Use your activity series): 2Na + Cu(NO3)2 → 2NaNO3 + Cu Al + Li3N → NO REACTION Cl2 + 2LiBr2 → 2LiCl + 2Br2

Double Displacement General Formula: AB + XY  XB + AY

3 Types of Products Formed: Double Displacement 3 Types of Products Formed: Precipitate (solid) Water Gas * Use a solubility table to see which product forms a solid!

NaCl + AgNO3  AgCl (s) + NaNO3 Ex: NaCl + AgNO3  AgCl (s) + NaNO3

Complete and balance the following double-replacement reactions: HCl + KOH → Ba(NO3)2 + Na2SO4 →

Complete and balance the following double-replacement reactions: HCl + KOH → H2O + KCl Ba(NO3)2 +Na2SO4 → BaSO4 + 2NaNO3

Fuel (C&H) + O2  CO2 + H2O C3H8 + 5O2  3CO2 + 4H2O Combustion General Formula: Fuel (C&H) + O2  CO2 + H2O Example: C3H8 + 5O2  3CO2 + 4H2O

YOUR TURN  Identify the TYPE of Reaction! Ba + AgNO3  Ag + Ba(NO3)2 SINGLE DISPLACEMENT K3N  K + N2 DECOMPOSITION Sr + N2  Sr3N2 SYNTHESIS CaF2 + LiCl  CaCl2 + LiF DOUBLE DISPLACEMENT CH4 + O2  CO2 + H2O COMBUSTION