What are the uses of combination reaction?
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1 combination reaction
the chemical reaction in which two or more substances combine to form a single product is known as combination reaction
for example during burning carbon combines with oxygen of air to form carbon dioxide.
C +O2------- CO2
CARBON +OXYGEN------ CARBON DIOXIDE
the chemical reaction in which two or more substances combine to form a single product is known as combination reaction
for example during burning carbon combines with oxygen of air to form carbon dioxide.
C +O2------- CO2
CARBON +OXYGEN------ CARBON DIOXIDE
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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 may be represented by equations of the following form: X + Y → XY. The combination of two or more elements and form one compound is called combination reaction. Combination reactions can involve different types of reactants:
TypeExamplea) Between elementsC + O2 → CO2Carboncompletely burnt inoxygenyieldscarbon dioxideb) Between compoundsCaO + H2O → Ca(OH)2Calcium oxide(lime) combined with watergivescalcium hydroxide(slaked lime)c) Between elements and compounds2CO + O2 → 2CO2Oxygen combines withcarbon monoxide, and carbon dioxide is formed.
There is no specific number of reactants in a combination reaction.
Combination reactions are usually exothermicbecause when the bond forms between the reactants, heat is released. For example,barium metal and fluorine gas will combine in a highly exothermic reaction to form the salt barium fluoride:
Ba + F2 → BaF2
Another example is magnesium oxidecombining with carbon dioxide to producemagnesium carbonate.
MgO + CO2 → MgCO3
Another example is iron combining withsulphur to produce iron(II) sulfide.
Fe + S → FeS
When a combination reaction occurs between a metal and a non-metal the product is an ionic solid. An example could be lithiumreacting with sulphur to give lithium sulphide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide. This specific combination reaction produces the bright flame generated by flares.
TypeExamplea) Between elementsC + O2 → CO2Carboncompletely burnt inoxygenyieldscarbon dioxideb) Between compoundsCaO + H2O → Ca(OH)2Calcium oxide(lime) combined with watergivescalcium hydroxide(slaked lime)c) Between elements and compounds2CO + O2 → 2CO2Oxygen combines withcarbon monoxide, and carbon dioxide is formed.
There is no specific number of reactants in a combination reaction.
Combination reactions are usually exothermicbecause when the bond forms between the reactants, heat is released. For example,barium metal and fluorine gas will combine in a highly exothermic reaction to form the salt barium fluoride:
Ba + F2 → BaF2
Another example is magnesium oxidecombining with carbon dioxide to producemagnesium carbonate.
MgO + CO2 → MgCO3
Another example is iron combining withsulphur to produce iron(II) sulfide.
Fe + S → FeS
When a combination reaction occurs between a metal and a non-metal the product is an ionic solid. An example could be lithiumreacting with sulphur to give lithium sulphide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide. This specific combination reaction produces the bright flame generated by flares.
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