Catalyst

Predict the products of the following synthesis reactions and write the complete BALANCED equation.

1. Al + O2

2. Ca + N2

3. Na + Cl

Today’s Agenda

Today’s Objectives

Scholars will differentiate between single-displacement, double-displacement, and combustion reactions.

Single/Double Replacement and Combustion Reactions

Chemical Reactions

There are 5 types of chemical relationships(reactions) at the prom this year.

1. Combustion2. Synthesis3. Decomposition4. Single-Displacement5. Double-Displacement

Drama on the Dance Floor!

A SINGLE-DISPLACEMENT REACTION is one in which a single element replaces a similar element in a compound

A + BX AX + B A couple is dancing, and someone else cuts in

Single-Displacement in Action

Single-Displacement Example: Zn + CuCl2

ZnClCl Cu +

A + BX AX + B

ClCl Zn Cu+

Swing Fever!

A DOUBLE-DISPLACEMENT REACTION is one in which ions switch places.

AX + BY AY + BX Two couples are dancing and decide to switch

partners!

Double-Displacement in Action

Double-Displacement Example: MgO + CaS

AX + BY AY + BX

SOMg Ca

+O S

Mg Ca+

Today’s Agenda

It’s getting hot in here…

A COMBUSTION REACTION is one in which a hydrocarbon burns in the presence of oxygen gas, releasing CO2 and H2O

A hydrocarbon is any compound made of hydrogen and carbonEx: CH4, C2H4

Combustion ExamplesPredict products of the reactions!

1. CH4(g) + O2(g)

2. C2H2(g) + O2(g)

CO2(g) + H2O(g)

CO2(g) + H2O(g)

Today’s Agenda

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

2 KI + Cl2 2 KCl + I2

2 ZnS + O2 2 ZnO + 2 S

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

K2(CO3) + Cu(SO4) Cu(CO3) + K2(SO4)

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

2 NaH(CO3) Na2(CO3) + H2O + CO2

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

H2O + SO3 H2(SO4)

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

2 H2 + O2 2 H2O

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

Ca(CO3) CaO + CO2

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

Li2O + H2O 2 Li(OH)

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

K2(CO3) + Ag(NO3) Ag2(CO3) + K(NO3)

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

H2(SO4) + Zn Zn(SO4) + H2

Decide if these equations are Synthesis (S), Decomposition (D), Single

Displacement(SD), Double Displacement(DD) or Combustion (C)

YOU PRACTICE

• 2 KClO3 2 KCl + 3 O2

• C3H8 + 5 O2 3 CO2 + 4 H2O• Co(OH)3 + 3 HNO3 Co(NO3)3 + 3 HOH • CaO + H2O Ca(OH)2

• Ba(ClO3)2 BaCl2 + 3 O2

• Na2CO3 Na2O + CO2

• 2 AgC2H3O2 + K2CrO4 Ag2CrO4 + 2 KC2H3O2

• 2 KOH + H2SO4 K2SO4 + 2 HOH

Today’s Agenda

Exit Slip

Using the letters A, B, C, and/or D…

1. Write an example of a synthesis reaction

2. Write an example of a decomposition reaction

3. Write an example of a single-displacement reaction

4. Write an example of a double-displacement reaction

5. Write the products of any combustion reaction