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Chemistry : Types of Chemical Reactions


Answer the following question(s) based on types of chemical reactions.

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Multiple choice

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1.

Magnesium + Oxygen → Magnesium oxide [2 Mg + O2 → 2 MgO] is an example of

  synthesis or direct combination reaction

  decomposition reaction

  double decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

2.

Water (+ electric current) → Hydrogen + Oxygen [2 H2O → 2 H2 + O2] is an example of

  double decomposition reaction

  simple displacement reaction

  decomposition reaction

  synthesis or direct combination reaction

  Half-n-half Clue
 

3.

Copper carbonate (+ heat) → Copper oxide + Carbon dioxide [CuCO3 → CuO + CO2] is an example of

  synthesis or direct combination reaction

  double decomposition reaction

  simple displacement reaction

  decomposition reaction

  Half-n-half Clue
 

4.

Iron + Sulfur → Iron sulfide [Fe + S → FeS] is an example of

  double decomposition reaction

  simple displacement reaction

  decomposition reaction

  synthesis or direct combination reaction

  Half-n-half Clue
 

5.

Potassium chlorate (+ heat) → Potassium chloride + Oxygen [2 KClO3 → 2 KCl + 3 O2] is an example of

  decomposition reaction

  synthesis or direct combination reaction

  double decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

6.

Sodium oxide + Water → Sodium hydroxide [Na2O + H2O → 2 NaOH] is an example of

  double decomposition reaction

  decomposition reaction

  simple displacement reaction

  synthesis or direct combination reaction

  Half-n-half Clue
 

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