5 common reaction types: -synthesis-decomposition -combustion-single displacement -double...

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5 Common Reaction Types:-synthesis -decomposition-combustion -single displacement-double displacementsynthesis - means to make something or buildExample: synthetic material, photosynthesis

decomposition- means to something downstarts out as 1 whole and breaks into 2 or more

EX: decomposing (dead) animals or garbage

5 Common Reaction Types:-synthesis -decomposition-combustion -single displacement-double displacementCombustion-burningalways has CO2 as a product

actual example:

5 Common Reaction Types:-synthesis -decomposition-combustion -single displacement-double displacementsingle displacment- 1 “switch”one element switches or hops to another partner

Cl switches to pair w/ Ca in the product

Like a divorce and a remarriage

5 Common Reaction Types:-synthesis -decomposition-combustion -single displacement-double displacementdouble displacment- 2 “switch”2 elements switch or change partners

Na & So4 both switches partners in the product

5 Types of Chemical 5 Types of Chemical ReactionsReactionsGuess which common reaction

type:

synthesis

4Fe + 3O2 Fe2O3

2 substances

1 product

Examples of synthesis reactions:

A skinny bird (reactant) and the worm (reactant) combine to make one product…..one fat bird.

5 Types of Chemical 5 Types of Chemical ReactionsReactions

Examples of synthesis reactions:

5 Types of Chemical 5 Types of Chemical ReactionsReactions

rain water & carbon dioxide in the air

combine to form

carbonic acid

carbon monoxide gas & oxygen gas

combine to form

carbon dioxide gas

5 Common Reaction Types:5 Types of Chemical 5 Types of Chemical

ReactionsReactions

Guess which common reaction type?

reactant -------> product + product

decomposition

                                                                                                                1) water can be broken down into

hydrogen gas & oxygen gas

2)To visualize this reaction look at the cartoon:

the egg (the reactant), which contained the turtle at one time, now has opened and the turtle (product) and egg shell (product) are now two separate substances.

Examples of decomposition reactions:5 Types of Chemical 5 Types of Chemical

ReactionsReactions

Ex: mercury oxide decomposes into mercury and oxygen

2HgO 2Hg + O2

Examples of decomposition reactions:

5 Types of Chemical 5 Types of Chemical ReactionsReactions

5 Types of Chemical 5 Types of Chemical ReactionsReactionsGuess which common reaction

type?

Single Displacement

Zn + 2HCL ZnCl2 + H2

The chemical equation for this single replacement reaction looks like:

reactant + reactant -----> product + product

5 Types of Chemical 5 Types of Chemical ReactionsReactionsSingle Replacement Reaction Cont’d:

Zn + 2HCL ZnCl2 + H2

To visualize this reaction look at the cartoon:

the guy in the orange shirt steals the date of the other guy.

So, a part of one of the reactants trades places and is in a different place among the products

5 Types of Chemical 5 Types of Chemical ReactionsReactionsGuess which common reaction

type?

double displacement

AgNo3 + NaCl AgCl + NaNo3

5 Types of Chemical 5 Types of Chemical ReactionsReactions

parts of two compounds switch places to form two new compounds

Two reactants yield two products.

4) Double Displacement (Replacement) Reaction:•a reaction in which the elements in

two compounds are exchanged

AX + BY AY + BXthey switch partners

reactant + reactant -----> product + product

The chemical equation for double replacement reaction looks like:

EX: silver nitrate combines with sodium

two new compounds--silver chloride & sodium nitrate are formed

because the sodium and silver switched placesWHY?…

5 Types of Chemical 5 Types of Chemical ReactionsReactionsDouble Displacement (Replacement)

Reaction:

5 Common Reaction Types:

5 Types of Chemical 5 Types of Chemical ReactionsReactions

C7H6O + O2 ---> CO2 + H2O 

Guess which common reaction type?

combustion