Types of Chemical Reactions · 2020. 5. 11. · Types of Chemical Reactions Part II. There are 5...
Transcript of Types of Chemical Reactions · 2020. 5. 11. · Types of Chemical Reactions Part II. There are 5...
Types of Chemical Reactions
Part II
There are 5 types of chemical reactions to know!
1. Single displacement
2. Double displacement
3. Synthesis
4. Decomposition
5. Combustion
+ +—>
—>
—>+ +
1. Single Displacement
A + BC —> AB + C
Kaden Nathan Aislyn Poor Nathan
• happens when a single element is replaced by a different element from an ionic compound
A + BC —> AB + C
Example: Cu + AgCl —> CuCl + Ag
1. Single Displacement
1. Double Displacement
• occurs when ionic compounds switch their metals
AB + CD —> CB + AD
Example: AgNO3 + NaCl —> NaNO3 + AgCl
2. Double Displacement
Single or Double?Zn + HCl —> H2 + ZnCl
copper chloride + aluminum —> aluminum chloride + copperAgNO3 + NaCl —> NaNO3 + AgCl
Cu + AgCl —> CuCl + Agmagnesium bromide + zinc chloride —> magnesium chloride + zinc bromide
2CuCl + CaO —> CaCl2 + Cu2O
Zn + NaCl —> ZnCl2 + Na
CuNO3 + K —> Cu + KNO3
NaOH + KNO3 —> NaNO3 + KOH
NaCl + F2 —> NaF + Cl2
calcium + hydrogen chloride —>
hydrogen + calcium chloride
Double Displacement
Single Displacement
Single Displacement
Single Displacement
Double Displacement
Single Displacement
Lab time and be sure that you have completed the questions!
Single-Displacement Labs Reaction A:
1. What clue(s) suggested a chemical reaction took place?
2. What is the word equation?
Reactants Description Before Mixing Description After Mixing
Aluminum foil
Copper Chloride
Single-Displacement Labs Reaction B:
1. What clue(s) suggested a chemical reaction took place?
2. What is the word equation?
Reactants Description Before Mixing Description After Mixing
Magnesium
Hydrochloric acid (HCl)
Copper + Silver chloride —> Copper chloride + silver
Zinc + Hydrogen chloride —> Hydrogen + Zinc chloride
Sodium chloride + Fluorine —> Sodium fluoride + Chlorine
Aluminum + Copper chloride —> Copper + Aluminum chloride
Double Displacement lab
1.Obtain the dropper bottles and spot plate. 2.Place 5 drops of one chemical in a depression of the spot plate. 3.Place 5 drops of second into the same depression. 4.Observe and record any changes. (DID IT FORM A PRECIPITATE?) 5.Repeat this procedure in different depressions for each combination in the observation chart. 6.Dispose of the mixtures as instructed by the teacher.
Sodium chloride
Sodium hydroxide
Silver Nitrate
Copper Chloride
Double Displacement
• Which of the following are double displacement reactions?
Double Displacement (a) 2CuCl + CaO —> CaCl2 + Cu2O
(b) Zn + NaCl —> ZnCl2 + Na
(c) CuNO3 + K —> Cu + KNO3
(d) NaOH + KNO3 —> NaNO3 + KOH
(e) NaCl + F2 —> NaF + Cl2
(f) calcium + hydrogen chloride —> hydrogen + calcium chloride
Sodium hydroxide + Silver nitride —> Sodium nitride + Silver hydroxide
Copper chloride + Sodium hydroxide —> Copper hydroxide + Sodium nitride
Silver nitrate + Sodium chloride —> Silver chloride + Sodium nitrate
Copper chloride + Sodium hydroxide —> Copper hydroxide + Sodium chloride
SYNTHESIS REACTION
A + B = AB
Types of Reactions1. Synthesis Reaction
• Occurs when two or more reactants come together to make one large product.
Basically: A + B —> AB
Reactant + Reactant 2 —> 1 product
Example: 2Ag + O2 —> 2AgO
DECOMPOSITION REACTION
AB = A + B
Types of Reactions2 . Decomposition reaction
• when a compound is broken down into simpler products
Basically: AB —> A + B
Compound ---> product 1 + product 1
eg. 2Cu2O —> 4 Cu + O2
BaO + CO2 —> BaCO3
2KClO3 —> 2KCl + 3O2
2Ag2O —> 4Ag + O2
2P2O3 + 6H2O —> 4H3PO3
BeO + CO2 —> BeCO3
Synthesis
Synthesis
Synthesis
Decomposition
Decomposition
Which of the following is a synthesis or decomposition reaction?