Write the chemical equation that Write the chemical equation that relates to each of the following word relates to each of the following word equations. Include symbols for equations. Include symbols for physical states in the equation. physical states in the equation. 11.A 11.A Solid zinc sulfide + oxygen gas Solid zinc sulfide + oxygen gas solid zinc oxide + sulfur solid zinc oxide + sulfur dioxide gas dioxide gas
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Write the chemical equation that relates to each of the following word equations. Include symbols for physical states in the equation. 11.A Solid zinc.
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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
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.
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.
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.
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.