Synthesis reaction: two or more compounds combine to form one.
A + B → C
Decomposition reaction: one compound forms two or more.
C → A + B
Single replacement reaction: an element in one compound is replaced with another element.
AB + C → AC + B
Double replacement reaction: elements in two compounds replace each other.
AB + CD → AC + BD
It is a type of neutralization reaction.
Synthesis reaction: In this reaction, two or more simple substances combine directly to form a complex substance.
Decomposition reaction: In this reaction, a single compound breaks down into two or more compounds.
Single displacement reaction: In this reaction, one element reacts with a compound to produce another element and another compound.
Neutralization reaction: In this reaction, acid reacts with base to produce a salt and water molecule.
For a given reaction,
is a acid
NaOH is a base
is a salt
As the given reaction is a type of Neutralization Reaction.
4 Al + 3O₂ → 2Al₂O₃
The classification of above reaction is synthesis
ExplanationSynthesis reaction is type of chemical reaction in which two or more simple substance combine to form a more complex product. React may be elements or compounds.In the reaction above Al combine with O₂ to form Al₂O₃ therefore it is synthesis reaction.
Single replacement reaction
-There are five general types of reactions . These includes; combination, decomposition, single replacement, double replacement, combustion.
-Single replacement reactions are reactions in which both reactants and products consist of an element and a compound . For example in our case, for reactants, the element is Aluminium (Al) and the compound is NiBr2, and for products the element is Ni and the compound is AlBr3.
-Single replacement reactions involves a chemical change in which one element replaces a second element in a compound . In this case Aluminium (Al) replaces nickel (Ni) in the compound NiBr2.
Combination or synthesis.
A synthesis or combination reaction is a type of chemical reaction in which two or more simple substances combine to form a more complex product. The reactants may be elements or compounds. The product is always a compund.
A synthesis reaction can be represented by its general equation: A + B → AB
In this case:
4AI + 3O2>2AI2O3
We have a combination between Aluminum and Oxygen, where the new compound is 2AI2O3.
The reaction equation properly written is shown below:
4Al + 3O₂ → 2Al₂O₃
A synthesis reaction is a form of combination of atoms. It involves the formation of a single product from two or more reactants.
Decomposition is the formation of two or more products from a single reactant.
Single replacement is a reaction in which one substance is replacing another.
In double displacement, there is an actual exchange of partners to form new compounds.
The reaction is a synthesis…
… because two substances are combining to make one other substance.
It is also a reduction-oxidation reaction because the oxidation number of Al increases from 0 to +3 and the oxidation number of O decreases from 0 to -2.
2 Al + 3 NiBr₂ = 2 AlBr₃ + 3 Ni
Classification : single replacement
hope this helps!