9.2 Classifying Chemical Reactions

What is a product of the double displacement reaction NaOH + CaBr₂ ?

• BrOH

• Br(OH)₂

• CaNa

• Ca(OH)₂

What type of reaction occurs when potassium and chlorine gas produce potassium chloride?

• combustion

• decomposition

• replacement

• synthesis

The following chemical equation is classified as a ______________.

CaCO₃ → CaO + CO₂

• synthesis reaction

• decomposition reaction

• single-replacement reaction

• double-replacement reaction

The thermite reaction involves iron, aluminum, and oxygen and releases a great deal of heat. What is the correct chemical equation for the thermite reaction?

(Hint: use your activity series chart)

• 2Fe_(s) + Al₂O_3(s) → Fe₂O_3(s) + 2Al_(s)

• 2Al_(s) + Fe₂O_3(s) → Al₂O_3(s) + 2Fe_(s)

• 3Fe_(s) + 2Al₂O_3(s) → 3Fe₂O_3(s) + 2Al_(s)

• 3Al_(s) + Fe₂O_3(s) → 3Al₂O_3(s) + 2Fe_(s)

Hydrogen peroxide, H₂O₂, changes in the presence of a catalyst in the following reaction. What type of chemical reaction is this?

2H₂O_2(aq) → 2H₂O_(l) + O_2(g)

• synthesis reaction

• combustion reaction

• decomposition reaction

• single replacement reaction

Which chemical reaction takes place when 2 substances react to form a single product?

• Decomposition
• Double Replacement
• Single Replacement
• Synthesis

Tags

NGSS.MS-PS1-2

What are the products of this reaction?

Ag + CuNO₃ →

• Cu(NO₃)₂ + Ag

• CuNO₃ + Ag

• CuAg + NO₃

• no reaction

Write a balanced reaction for this reaction

Zn(s) + H₂SO₄(aq) →

• Zn(SO₄)₂ + H

• ZnSO₄ + H₂

• ZnSO₄ + H

• Zn₂SO₄ + H₂

Write a Balanced Equation for this reaction:

C₂H₄ + 3O₂ →

• C₂O₂ + H₄

• CO₂ + HOH

• CO + H

• 2CO₂ + 2H₂O

Predict the products for the decomposition of potassium chlorate: KClO₃

• KCl + O₂

• K₂O + Cl₂

• K + ClO₃

• K + ClO₂