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Types of Chemical Reactions

Introduction to the different types of chemical reactions. Resources: Modern Chemistry - Holt, Rinehart, and Winston
by

Renee Robinson

on 4 December 2015

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Transcript of Types of Chemical Reactions

Double Replacement Rxn
Single Replacement Rxn
An element reacts with a compound and replaces one of the elements in the compound.
Metals replace hydrogen or other metals; nonmetals replace nonmetals.
Chemical Reaction
Defined as any process in which one or more substances are converted into new substances with different properties.
Chemical reactions change the identify of the reacting substances and produce new substances
Combination Rxn
Two reactants combine to form a single product.
The reactants may be elements or compounds
Also called a synthesis reaction.
Decomposition Rxn
One reactant, a compound, breaks down to give two or more products.
Combustion Rxn
A compound burns in the presence of oxygen, producing energy in the form of heat and light.
The combustion of organic compounds produces carbon dioxide and water.
5 types of Chemical Reactions
Chemical Reactions
Zn(s) + 2HCl(aq) H (g) + ZnCl (aq)
2
2
Cl (aq) + 2NaI(aq) I (aq) + 2NaCl(aq)
2
2
Two ionic compounds (or compounds that break apart to form ions in solution) exchange ions to form new compounds.
Examples include precipitation reactions (driving force is formation of a precipitate), acid-base reactions (driving force is formation of water, and gas-forming reactions (driving force is evolution of gas).
NaCl(aq) + AgNO (aq) AgCl(s) + NaNO (aq)

H SO (aq) + 2NaOH(aq) Na SO (aq) + 2H O(l)

Na SO (aq) + 2HCl(aq) 2NaCl(aq) + H O(l) + SO (g)
3
3
2
4
2
4
2
2
3
2
2
Zn(s) + I (s) ZnI (s)

CaO(s) + H O(l) Ca(OH) (s)
2
2
2
2
2H O (aq) 2H O(l) + O (g)
2
2
2
2
C H (l) + 6O (g) 4CO (g) + 4H O(g)
4
8
2
2
2
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