Write the chemical equation that relates to each of Write the chemical equation that relates to each of the following word equations. Include symbols for the following word equations. Include symbols for

physical states in the equation.physical states in the equation.

11.A11.A

Solid zinc sulfide + oxygen gas Solid zinc sulfide + oxygen gas

solid zinc oxide + sulfur dioxide solid zinc oxide + sulfur dioxide gasgas

Write the chemical equation that relates to each of Write the chemical equation that relates to each of the following word equations. Include symbols for the following word equations. Include symbols for

physical states in the equation.physical states in the equation.

11.b11.b

Aqueous hydrochloric acid + aqueousAqueous hydrochloric acid + aqueous

barium hydroxide barium hydroxide

aqueous barium chloride + aqueous barium chloride + waterwater

Drill – 2/17/10Drill – 2/17/10

Balance the following equation:Balance the following equation:

1.1. Potassium and water react to Potassium and water react to produce potassium hydroxide and produce potassium hydroxide and hydrogen.hydrogen.

Types of Chemical Types of Chemical ReactionsReactions

States of matter symbols used in States of matter symbols used in chemical equationschemical equations

(s)(s) solidsolid (l)(l) liquidliquid (aq)(aq) in aqueous solution (dissolved in aqueous solution (dissolved

in water)in water) (g)(g) gasgas

Types of Chemical ReactionsTypes of Chemical Reactions

1.1. SynthesisSynthesis

2.2. DecompositionDecomposition

3.3. Single DisplacementSingle Displacement

4.4. Double DisplacementDouble Displacement

5.5. CombustionCombustion

SynthesisSynthesis

Two or more reactants combine to Two or more reactants combine to form a single productform a single product

A + B A + B AB AB General General FormForm

Example:Example:

2Al(2Al(ss) + 3Br) + 3Br22((ll) ) 2AlBr 2AlBr33((ss))

DecompositionDecomposition

A single reactant breaks down to A single reactant breaks down to form multiple products. Often form multiple products. Often energy is required.energy is required.

JK JK J + K J + K General Form General Form

Example:Example:

Single DisplacementSingle Displacement

One reactant replaces a similar One reactant replaces a similar component in the other reactant.component in the other reactant.

Cation Displacement:Cation Displacement: General Form General Form A + BX A + BX AX + B AX + B

Anion Displacement:Anion Displacement:General Form General Form Y + BX Y + BX BY + X BY + X

Double DisplacementDouble Displacement

Two cations and two anions swap Two cations and two anions swap components and rearrange.components and rearrange.

General Form:General Form:

AAXX + + BBYY AAYY + + BBXX

Example: Example:

AgNOAgNO33 + NaCl + NaCl AgCl + NaNO AgCl + NaNO33

CombustionCombustionA substance combines with oxygen, releasing A substance combines with oxygen, releasing large amounts of energy in the form of light large amounts of energy in the form of light and heat. Usually combustion rxns yield the and heat. Usually combustion rxns yield the products products carbon dioxide and watercarbon dioxide and water..

General FormGeneral Form: : CCxxHHyy + O + O22 CO CO22 + H + H22OO

Example: The metabolism of glucose.Example: The metabolism of glucose.

CC66HH1212OO66((ss) + 6O) + 6O22((gg) ) 6CO 6CO22((gg) + 6H) + 6H22O(O(ll))

Combustion of FuelCombustion of Fuel

Let’s look at what happens in a Let’s look at what happens in a carburetor/fuel injector when carburetor/fuel injector when gasoline is burned. This gasoline is burned. This exothermic reaction produces exothermic reaction produces lots of heat energy and carbon lots of heat energy and carbon dioxide gas and water vapor dioxide gas and water vapor that drives the pistons to rotate that drives the pistons to rotate a turbine. This turns the drive a turbine. This turns the drive shaft, which is transferred into shaft, which is transferred into tire rotation. The accelerator is tire rotation. The accelerator is what regulates the amount of what regulates the amount of fuel entering the engine to be fuel entering the engine to be burned.burned.