Formative 4D: Types of Chemical Reactions

Which type of reaction takes place when one element reacts with a compound to form a new compound and a different element?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

In what kind of reaction do two or more substances combine to form a new compound?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

The equation shows a chemical reaction.

Pb(NO₃)₂ (aq) + 2 KI (aq) → 2 KNO₃ (aq) + PbI₂ (s)

What type of chemical reaction is represented by this equation?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

The equation shows a chemical reaction.

2 H₂O₂(l) → 2 H₂O(l) + O₂(g)

What kind of reaction is this?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

The equation A + X → AX is the greatest equation for which kind of reaction?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

The equation shows a chemical reaction.

H₂CO₃ → H₂O + CO₂

Which type of reaction is represented by this equation?

• 
  synthesis reaction

• decomposition reaction

• 
  single replacement reaction

• double replacement reaction

Which example shows a double replacement reaction?

• KCl + AgNO₃ → AgCl + KNO₃

• Cu + Ag (NO₃)₂ → Ag + Cu(NO₃)₂

• Na₂CO₃ → Na₂O + CO₂

• CaO + CO₂ → CaCO₃

Which of the following represents a single replacement reaction?

• Ca(OH)₂ → CaO + H₂O

• Zn + 2HCl → ZnCl₂ + H₂

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

Which reaction is classified as a synthesis reaction?

• Zn + 2HCl → ZnCl₂ + H₂

• 2Al + 3Br₂ → 2AlBr₃

• 2H₂O → 2H₂ + O₂

• NaCl → Na + Cl

Which of the following is an example of double displacement?

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