Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes...

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Classifying Chemical Reactions Chemical Reactions

Transcript of Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes...

Page 1: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Classifying Chemical Reactions

Chemical Reactions

Page 2: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Learning GoalsClassify chemical reactions.

Identify the characteristics of different classes of chemical reactions.

Page 3: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

A synthesis reaction is a reaction in which two or more substances react to produce a single product.

When two elements react, the reaction is always a synthesis reaction.

Page 4: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

Page 5: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

Two compounds can also react to create one compound in a synthesis reaction.

Page 6: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

In a combustion reaction, oxygen combines with a substance and releases energy in the form of heat and light.

Page 7: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

Heated hydrogen reacts with oxygen to produce heat and water in a combustion reaction. This is also a synthesis reaction.

Page 8: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

Page 9: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Types of Chemical Reactions

Not all combustion reactions are synthesis reactions!

Page 10: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
Page 11: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Decomposition ReactionsA decomposition reaction is one in which a single compound breaks down into two or more elements or new compounds.

AB A + B

Page 12: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Decomposition Reactions

Decomposition reactions often require an energy source, such as heat, light, or electricity, to occur.

Page 13: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Decomposition Reactions

Page 14: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
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Replacement ReactionsA reaction in which the atoms of one element replace the atoms of another element in a compound is called a single replacement reaction.

Page 16: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement Reactions

A + BX → AX + B

Page 17: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement Reactions

Metal replaces hydrogen or another metal.

Page 18: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement ReactionsA metal will not always replace a metal in a compound dissolved in water because of differing reactivities.

An activity series can be used to predict if reactions will occur.

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Replacement ReactionsHalogens frequently replace other halogens in replacement reactions.

Halogens also have different reactivities and do not always replace each other.

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Page 24: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement Reactions

Double replacement reactions occur when ions exchange between two compounds.

AX + BY AY + BX

Page 25: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement Reactions

Page 26: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.

Replacement ReactionsThe solid product produced during a chemical reaction in a solution is called a precipitate.

All double replacement reactions produce either water, a precipitate, or a gas.

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Page 28: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
Page 29: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
Page 30: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
Page 31: Chemical Reactions. Classify chemical reactions. Identify the characteristics of different classes of chemical reactions.
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