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What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction?
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What is displacement, double displacement, chemical equations,chemical...
Displacement reactions: Reactions in which a more active element displaces a less active element from its compound.
i.e. Iron (Fe) + copper sulphate (CuSO4)→ ferrous sulphate (FeSO4) + copper (Cu)
In this example, Iron is more reactive than copper, so it displaces copper from its compound, copper sulphate.
Double displacement reactions: These types of reactions take place when two different atoms or groups of atoms are exchanged.
for example, reaction between iron sulphide and dilute sulphuric acid:
Iron sulphide (FeS) + sulphuric acid (H2SO4) → Ferrous sulphate (FeSO4) + Hydrogen sulphide (H2S)
Precipitation reactions: In these reactions, aqueous solutions of two compounds react to form an insoluble compound which seperates out as a solid (precipitate).
Example: Lime water Ca(OH)2+ carbon dioxide CO2→ calcium carbonate CaCO3 + water H2O
Combination reactions: Two or more elements or compounds combine to form a single compound in this reaction.
Example: Burning of a magnesium ribbon.
Magnesium (2Mg) + Oxygen (O2)→ Magnesium Oxide (2MgO)
i.e. Iron (Fe) + copper sulphate (CuSO4)→ ferrous sulphate (FeSO4) + copper (Cu)
In this example, Iron is more reactive than copper, so it displaces copper from its compound, copper sulphate.
Double displacement reactions: These types of reactions take place when two different atoms or groups of atoms are exchanged.
for example, reaction between iron sulphide and dilute sulphuric acid:
Iron sulphide (FeS) + sulphuric acid (H2SO4) → Ferrous sulphate (FeSO4) + Hydrogen sulphide (H2S)
Precipitation reactions: In these reactions, aqueous solutions of two compounds react to form an insoluble compound which seperates out as a solid (precipitate).
Example: Lime water Ca(OH)2+ carbon dioxide CO2→ calcium carbonate CaCO3 + water H2O
Combination reactions: Two or more elements or compounds combine to form a single compound in this reaction.
Example: Burning of a magnesium ribbon.
Magnesium (2Mg) + Oxygen (O2)→ Magnesium Oxide (2MgO)
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What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction?
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What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction?.
What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is displacement, double displacement, chemical equations,chemical formula, precipitation reaction, combination reaction?.
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