Chemistry - Type Of Chemical Reactions

Front 1

What type of aqueous chemical reactions are there?

Back 1

Precipitation reactions;
Acid-base neutralization reactions and;
Oxidation-Reduction reactions.

Front 2

Describe a Precipitation reaction.

Back 2

Here soluble reactants yield an insoluble solid product, most of these reactions take place where the anions and cations of two ionic compounds change partners.
AB(aq) + CD(aq) -> BC(aq) + AD(s)

Front 3

Describe a Acid-base neutralization reaction.

Back 3

Here an acid reacts with a base to yield water and an ionic compound called salt, water is produced by the removal of H and OH ions from the solution.
HCl(aq) + NaOH(aq) ->H2O(l) + NaCk(aq)

Front 4

Describe a oxidation-reduction reaction.

Back 4

-This is also called Redox reaction.
-Here one or more electrons are transfered between reaction partners.

Front 5

What does Oxidation mean?

Back 5

It means that an atom looses electrons.

Front 6

What does reduction mean?

Back 6

It means that an atom gains electrons.

Front 7

Name other normal chemical reactions.

Back 7

Combination reaction;
Decomposition reaction;
Displacement reaction, and;
Partner exchange reaction.

Front 8

Describe combination reaction.

Back 8

This happens when the reactants are fewer than products, this type of reaction needs a burner heat to be performed.
A+B -> C

Front 9

Describe decomposition reaction.

Back 9

This happens when the products are fewer than the reactants, this reaction need to be made in heat to be performed.
C -> A + B

Front 10

Describe displacement reaction.

Back 10

Here the atoms or ions at one substance take the place of atoms or ions in a compound.
A + BC -> AC + B
- Metals normally displace hydrogen from acids, they need to be more active than hydrogen. Fe + H2SO4 eg.

Front 11

Describe Partner exchange reactions.

Back 11

Two or more products change partners.
AB + CD -> AC + BD