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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.

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

  double decomposition reaction

  synthesis or direct combination reaction

  decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

2.

Zinc + Hydrochloric acid → Zinc chloride + Hydrogen [Zn + 2 HCl → ZnCl2 + H2] is an example of

  double decomposition reaction

  decomposition reaction

  simple displacement reaction

  synthesis or direct combination reaction

  Half-n-half Clue
 

3.

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

  double decomposition reaction

  synthesis or direct combination reaction

  decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

4.

Iron + Sulfuric acid → Ferrous sulfate + Hydrogen [Fe + H2SO4 → FeSO4 + H2] is an example of

  synthesis or direct combination reaction

  double decomposition reaction

  decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

5.

Potassium chloride + Silver nitrate → Potassium nitrate + Silver chloride [KCl + AgNO3 → KNO3 + AgCl] is an example of

  synthesis or direct combination reaction

  simple displacement reaction

  double decomposition reaction

  decomposition reaction

  Half-n-half Clue
 

6.

Aluminum chloride + Sodium hydroxide → Aluminum hydroxide + Sodium chloride [AlCl3 + 3 NaOH → Al(OH)3 + 3 NaCl] is an example of

  double decomposition reaction

  synthesis or direct combination reaction

  decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

7.

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

  double decomposition reaction

  synthesis or direct combination reaction

  decomposition reaction

  simple displacement reaction

  Half-n-half Clue
 

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