What are:
A - Combination reactions
B - Decomposition reactions
C - Single displacement reactions
D - Double displacement reactions?
A - Combination reactions
B - Decomposition reactions
C - Single displacement reactions
D - Double displacement reactions?
A. In combination reactions, two or more reactants form one product.
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product). Such reactions are represented by equations of the following form:
X + Y → XY
An example of a combination reaction is when hydrogen and chlorine react to form hydrochloric acid:
B. Decomposition reactions are really the opposite of combination reactions.
A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.
The general representation of decomposition reaction is. AB → A + B.
For example, a common method of producing oxygen gas in the laboratory is the decomposition of potassium chlorate (KClO3) by heat.
C.Displacement reaction is a chemical reaction in which one reactant present in the equation is displaced with the other reactant. In single displacement reactions, a more active element displaces (kicks out) another less active element from a compound.
The reaction between zinc metal and hydrochloric acid to produce zinc chloride and hydrogen gas is an example of a single-displacement reaction:
Zn(s) + 2 HCl(aq) → ZnCl2 (aq) + H2(g)
D. Double displacement reactions, Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions. Most of the time, reactions of this type occur in a solution, and either an insoluble solid (precipitation reactions) or water (neutralization reactions) will be formed.
Example: Na2SO4+BaCl2⟶BaSO4+2NaCl
A. In combination reactions, two or more reactants form one product.
A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product). Such reactions are represented by equations of the following form:
X + Y → XY
An example of a combination reaction is when hydrogen and chlorine react to form hydrochloric acid:
B. Decomposition reactions are really the opposite of combination reactions.
A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.
The general representation of decomposition reaction is. AB → A + B.
For example, a common method of producing oxygen gas in the laboratory is the decomposition of potassium chlorate (KClO3) by heat.
C.Displacement reaction is a chemical reaction in which one reactant present in the equation is displaced with the other reactant. In single displacement reactions, a more active element displaces (kicks out) another less active element from a compound.
The reaction between zinc metal and hydrochloric acid to produce zinc chloride and hydrogen gas is an example of a single-displacement reaction:
Zn(s) + 2 HCl(aq) → ZnCl2 (aq) + H2(g)
D. Double displacement reactions, Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions. Most of the time, reactions of this type occur in a solution, and either an insoluble solid (precipitation reactions) or water (neutralization reactions) will be formed.
Example: Na2SO4+BaCl2⟶BaSO4+2NaCl
