CLASSIFYING CHEMICAL REACTIONS
TYPES OF CHEMICAL REACTIONS
COMBUSTION
SYNTHESIS
REPLACEMENT
DECOMPOSITION
EVIDENCE OF A CHEMICAL REACTIONS
COlor change
Change in temperature
formation of bubbles or solids
odor
SYNTHESIS REACTION
What is a synthesis reaction?
03
Is when two or more chemical species combine to form a more complex product.
GENERAL FORMULA: SYNTHESIS REACTION
A + B AB
Synthesis reactions
Group A metals combine with nonmetals to form ionic compounds. (To get the correct formula you must know the charges of the
cations and anions that the metal and nonmetal form).
Synthesis reactions
When two nonmetals react in a synthesis reaction, there is more than one possible product. – you must be given the product name
Synthesis reactions
When a transition metal and a nonmetal react in a synthesis reaction, there may be more than one possible product because the transition metal could form more than one cation. – you must be given at least the charge on the cation.
Synthesis reactions
Nonmetal oxides (nonmetal with oxygen) react with water to produce an acid (H+ compound).
Synthesis reactions
Metallic oxides (metal with oxygen) react with water to give a base (OH- compounds). Use ionic charges to write formula of
product.
Synthesis reactions
A metal oxide and nonmetal oxide combine to form a salt.
Synthesis reactions CLASSWORK
Synthesis reactions CLASSWORK
DECOMPOSITION REACTION
What is a DECOMPOSITION reaction?
03
A single compound is broken down into two or more products and usually require energy (heat, light or
electricity) to take place.
GENERAL FORMULA: DECOMPOSITION REACTION
A B A + B
DECOMPOSITION reactions
When a binary (2 elements only) compound breaks down, the products will be those 2 elements.
DECOMPOSITION reactions
When some acids are heated, they decompose to form water and nonmetal oxide
DECOMPOSITION reactions
When some metal hydroxides (metal combined with OH-)are heated, they decompose to form a metallic oxide and water.
DECOMPOSITION reactions
When some metallic carbonates (metal combined with CO3 2-) are heated, they decompose to form a metallic oxide and carbon dioxide.
DECOMPOSITION reactions
When metallic chlorates (metal combined with ClO3-)are heated, they decompose to form metallic chlorides and oxygen.
DECOMPOSITION reactions
COMBUSTION REACTION
What is a COMBUSTION reaction?
03
is a reaction in which a hydrocarbon reacts with oxygen gas, releasing energy in the form of light and heat.
Learning algebraic method
03
GENERAL FORMULA: COMBUSTION REACTION
COMBUSTION reactions CW
REPLACEMENT REACTION
Types of replacement reactions:
03
Single replacement reaction
Double replacement reaction
What is a SINGLE REPLACEMENT reaction?
03
Is a reaction in which one element is substituted for another element in a compound.
GENERAL FORMULA: SINGLE REPLACEMENT REACTION
If we are trying to figure out whether a single displacement reaction will occur, there are two main questions we need to answer:
1. What are the two elements that might swap places in our proposed reaction?
In general, elements that form anions can replace the anion in a compound, and elements that form cations can replace the cation in a compound.
If we are trying to figure out whether a single displacement reaction will occur, there are two main questions we need to answer:
2. What is the new compound that will form as a product?
Once we know what element might be replaced in our ionic compound, we can predict the products that might be formed.
If element C, is more reactive than element A, then C, will replace A, in a compound. If element C, is less reactive than element A, then there will be no reaction.
Activity Series
What is a DOUBLE REPLACEMENT reaction?
03
Is a reaction that occurs when parts of two ionic compounds are exchanged, making two new compounds.
GENERAL FORMULA: DOUBLE REPLACEMENT REACTION
PRACTICE
https://www.britannica.com/quiz/types-of-chemical-reactions
HAVE A NICE DAY !
CLASSIFYING CHEMICAL REACTIONS
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Transcript
CLASSIFYING CHEMICAL REACTIONS
TYPES OF CHEMICAL REACTIONS
COMBUSTION
SYNTHESIS
REPLACEMENT
DECOMPOSITION
EVIDENCE OF A CHEMICAL REACTIONS
COlor change
Change in temperature
formation of bubbles or solids
odor
SYNTHESIS REACTION
What is a synthesis reaction?
03
Is when two or more chemical species combine to form a more complex product.
GENERAL FORMULA: SYNTHESIS REACTION
A + B AB
Synthesis reactions
Group A metals combine with nonmetals to form ionic compounds. (To get the correct formula you must know the charges of the cations and anions that the metal and nonmetal form).
Synthesis reactions
When two nonmetals react in a synthesis reaction, there is more than one possible product. – you must be given the product name
Synthesis reactions
When a transition metal and a nonmetal react in a synthesis reaction, there may be more than one possible product because the transition metal could form more than one cation. – you must be given at least the charge on the cation.
Synthesis reactions
Nonmetal oxides (nonmetal with oxygen) react with water to produce an acid (H+ compound).
Synthesis reactions
Metallic oxides (metal with oxygen) react with water to give a base (OH- compounds). Use ionic charges to write formula of product.
Synthesis reactions
A metal oxide and nonmetal oxide combine to form a salt.
Synthesis reactions CLASSWORK
Synthesis reactions CLASSWORK
DECOMPOSITION REACTION
What is a DECOMPOSITION reaction?
03
A single compound is broken down into two or more products and usually require energy (heat, light or electricity) to take place.
GENERAL FORMULA: DECOMPOSITION REACTION
A B A + B
DECOMPOSITION reactions
When a binary (2 elements only) compound breaks down, the products will be those 2 elements.
DECOMPOSITION reactions
When some acids are heated, they decompose to form water and nonmetal oxide
DECOMPOSITION reactions
When some metal hydroxides (metal combined with OH-)are heated, they decompose to form a metallic oxide and water.
DECOMPOSITION reactions
When some metallic carbonates (metal combined with CO3 2-) are heated, they decompose to form a metallic oxide and carbon dioxide.
DECOMPOSITION reactions
When metallic chlorates (metal combined with ClO3-)are heated, they decompose to form metallic chlorides and oxygen.
DECOMPOSITION reactions
COMBUSTION REACTION
What is a COMBUSTION reaction?
03
is a reaction in which a hydrocarbon reacts with oxygen gas, releasing energy in the form of light and heat.
Learning algebraic method
03
GENERAL FORMULA: COMBUSTION REACTION
COMBUSTION reactions CW
REPLACEMENT REACTION
Types of replacement reactions:
03
Single replacement reaction
Double replacement reaction
What is a SINGLE REPLACEMENT reaction?
03
Is a reaction in which one element is substituted for another element in a compound.
GENERAL FORMULA: SINGLE REPLACEMENT REACTION
If we are trying to figure out whether a single displacement reaction will occur, there are two main questions we need to answer:
1. What are the two elements that might swap places in our proposed reaction?
In general, elements that form anions can replace the anion in a compound, and elements that form cations can replace the cation in a compound.
If we are trying to figure out whether a single displacement reaction will occur, there are two main questions we need to answer:
2. What is the new compound that will form as a product?
Once we know what element might be replaced in our ionic compound, we can predict the products that might be formed.
If element C, is more reactive than element A, then C, will replace A, in a compound. If element C, is less reactive than element A, then there will be no reaction.
Activity Series
What is a DOUBLE REPLACEMENT reaction?
03
Is a reaction that occurs when parts of two ionic compounds are exchanged, making two new compounds.
GENERAL FORMULA: DOUBLE REPLACEMENT REACTION
PRACTICE
https://www.britannica.com/quiz/types-of-chemical-reactions
HAVE A NICE DAY !