Types of Chemical Reactions

Open Ended

Why is it important to classify chemical reactions into different types such as synthesis, decomposition, combustion, single-replacement, and double-replacement?

Multiple Choice

Which type of chemical reaction is demonstrated by the equation 2Al(s) + 3I2(s) → 2AlI3(s) and what visual clue is provided in the demo?

• Synthesis; purple haze is produced

• Decomposition; bubbles are formed

• Combustion; heat is released

• Single replacement; a metal is deposited

Multiple Select

Which of the following are always products in a combustion reaction?

• Carbon dioxide

• Water

• Oxygen

• Methane

Open Ended

Compare the decomposition and combustion reactions shown in the 'Murder of a Gummy Bear' demo. What distinguishes these two types of reactions based on their reactants and products?

Multiple Choice

In a single replacement reaction, which element is replaced in the reaction Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)?

• Copper

• Zinc

• Silver

• Sulfur

Multiple Choice

Which type of chemical reaction is illustrated by the equation: Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)?

• Single replacement

• Double replacement

• Decomposition

• Synthesis

Open Ended

Explain how the formation of a precipitate occurs in a double replacement reaction, using the examples provided.

Multiple Choice

Which type of chemical reaction involves two or more reactants combining to form one product?

• Decomposition

• Combustion

• Synthesis

• Double-Replacement

Multiple Choice

In a synthesis reaction, how many products are typically formed when two or more reactants combine?

• One product

• Two products

• Multiple products

• No products

Open Ended

Reflecting on today's lesson, which type of chemical reaction do you find most interesting and why?