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Chemical reactions are the �sentence�
that shows a chemical change.
Components of a chemical reaction
Chemical reactions are made of reactants are listed first, followed
by an arrow that indicates �yields,� �produces,� or �forms.� The
arrow is followed by the products of the chemical reaction.
Chemical reactions can also show states of matter and energy
changes.
Common types of chemical reactions
There are several common types of chemical reactions. Composition
reactions are when more than one type of matter combines to form one
molecule. Decomposition reactions are the opposite of composition
reactions. Single replacement reactions involve and element
reacting with a compound and replacing one of the elements in the
compound. A double replacement reaction has two compounds that
switch ions. A neutralization reaction is a double replacement
reaction between an acid and a base. Precipitation reactions are
double replacement reactions that produce an insoluble compound.
Redox reactions involve the transfer of electrons from one atom to
another, resulting in the change of an oxidation number.
Double replacement reactions and
precipitations
Solubility rules can be used to determine if a double
replacement reaction forms a precipitate, an insoluble ionic
compound
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