5 Common Reaction Types: -synthesis-decomposition -combustion-single displacement -double displacement synthesis - means to make something or build Example: synthetic material, photosynthesis decomposition- means to something down  starts 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 displacement Combustion-burning  always has CO 2 as a product  actual example:

5 Common Reaction Types: -synthesis-decomposition -combustion-single displacement -double displacement single 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 displacement double displacment- 2 “switch”  2 elements switch or change partners  Na & So 4 both switches partners in the product

5 Types of Chemical Reactions Guess which common reaction type: synthesis 4Fe + 3O 2 Fe 2 O 3 2 substances1 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 Reactions

Examples of synthesis reactions: 5 Types of Chemical Reactions 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 Reactions 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 Reactions

Ex: mercury oxide decomposes into mercury and oxygen 2HgO 2Hg + O 2 Examples of decomposition reactions: 5 Types of Chemical Reactions

Guess which common reaction type? Single Displacement Zn + 2HCL ZnCl 2 + H 2

The chemical equation for this single replacement reaction looks like: reactant + reactant -----> product + product 5 Types of Chemical Reactions Single Replacement Reaction Cont’d: Zn + 2HCL ZnCl 2 + H 2

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 Reactions Guess which common reaction type? double displacement AgNo 3 + NaCl AgCl + NaNo 3

5 Types of Chemical Reactions  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 + BX they 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 places WHY?… 5 Types of Chemical Reactions Double Displacement (Replacement) Reaction:

5 Common Reaction Types: 5 Types of Chemical Reactions C 7 H 6 O + O 2 ---> CO 2 + H 2 O Guess which common reaction type? combustion