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CHEMICAL REACTIONS - Coggle Diagram
CHEMICAL REACTIONS
What Are Chemical Reactions
Chemical reactions are the result of a chemical change where atoms are reorganized into one or more new arrangements.
A Reaction Must Be Balanced.
Reactants
The starting materials and appear on the left side of the equation.
The states of the reactants and products are written in parentheses to the right of each compound.
o (g) = gas; (ℓ) = liquid; (s) = solid; (aq) = in aqueous solution (dissolved in water).
Products
New substances resulting from a chemical change and appear on the right side of the equation.
In a chemical reaction
Atoms (and thus mass) is conserved
The electrical charge is conserved
The chemical bonding changes
Classifying Chemical Reactions
Single-replacement reactions
A single-replacement reaction is a reaction in which a more active metal displaces another less active metal in a compound.
Double-replacement reactions
In a double-replacement reaction, two ionic compounds in aqueous solution switch anions and produce an insoluble substance.
Decomposition reactions
In a decomposition reaction, a single compound is broken down into two or more simpler substances.
Heat is usually reqıired
Neutralization reactions
A neutralization reaction is the reaction of an acid and a base and produces salt and water.
Combination reactions (synthesis reactions)
A combination reaction is a reaction in which simpler substances are combined into a more complex compound.
Combustions reactions
In a combustion reaction, carbon containing compounds, fuel burns in oxygen from the air to produce carbon dioxide, CO2, water, H2O, and heat or flame.
contains O2
generally rapid reactions with flame
