Types of Chemical Reactions Practice Problems

The light gray spheres are chlorine atoms, the blue spheres are nitrogen atoms, the orange spheres are oxygen atoms, and the molecules involved are gases in the reaction represented below. Determine the type of chemical reaction.

The blue spheres are sulfur atoms, the orange spheres are oxygen atoms, and the molecules involved are gases in the reaction represented below. Identify the chemical reaction type.

Insert correct coefficients to balance the hypothetical equation below and identify the type of reaction. 

Add coefficients to balance the hypothetical equation below and identify the type of reaction.

Identify the type of reaction that occurs when copper displaces silver in Ag(NO₃)₂.

Identify the type of the following unbalanced equation: Zn (s) + O₂ (g) → ZnO (s)

Liquid isopentane (C₅H₁₂) is one of the components of a typical gasoline mixture. It combusts with oxygen gas to form gaseous carbon dioxide and gaseous water. Show the balanced chemical equation.

Copper metal can be extracted from copper (II) oxide by displacing it with aluminum. This process is also known as the thermite reaction. Copper in copper (II) oxide will be reduced while aluminum will be oxidized, forming copper metal and aluminum oxide.  Provide the balanced equation for this reaction.

The compound potassium chlorate (KClO₃) decomposes into potassium chloride (KCl) and oxygen gas (O₂). Provide the balanced reaction equation.

Octane (C₈H₁₈) is added to fuels in order to improve the performance of engines. Give the balanced equation for the combustion of octane with O₂ which yields CO₂ and H₂O.

Elemental sulfur which exists as solid S₈ and oxygen gas (O₂) reacts to form sulfur dioxide gas. What is the balanced reaction equation?

Calculate the sum of the coefficients for the balanced reaction for the complete combustion of propionic acid, C₃H₆O₂

The empirical formula for potassium oxide is K₂O. Write a balanced chemical equation for this reaction and explain why there are 4 K ions in the balanced equation.

Identify which among the chemical equations is an acid-base reaction.

Balance the following reaction equations and determine the type of the reaction occurring:

i) ____ KCl + ____ H₃PO₄ → ___ K₃PO₄ + ___ HCl

ii) ___ Ca(OH)₂ + ___ Fe₂(CrO₄)₃ → ___CaCrO₄ + __ Fe(OH)₃

Adding a small amount of manganese(IV) oxide to a concentrated hydrogen peroxide (H₂O₂) solution is often used as a demonstration in chemistry classes. Under these conditions, hydrogen peroxide decomposes quite notably to produce oxygen gas and steam (water vapor). Manganese (IV) oxide is a catalyst in the decomposition reaction and it is not consumed in the reaction. What is the balanced equation for the decomposition reaction of hydrogen peroxide?