Types of Chemical Reactions

Which of the following reactions is classified as a combustion reaction?

• The reaction between iron and sulfur to form iron(II) sulfide
• The reaction between hydrochloric acid and sodium hydroxide to produce water and salt
• The reaction between a hydrocarbon fuel (such as methane) and oxygen to produce carbon dioxide and water
• The reaction between silver nitrate and sodium chloride to form silver chloride and sodium nitrate

Which of the following is an example of a combination reaction?

• Reaction between iron and sulfur to form iron(II) sulfide
• Reaction between magnesium and hydrochloric acid to form magnesium chloride
• Reaction between copper and oxygen to form copper oxide
• Reaction between sodium and water to form sodium hydroxide

In which type of reaction does a single element replace another element in a compound?

• Displacement reaction

• Combustion reaction
• Decomposition reaction
• Double Displacement reaction

Which of the following is an example of a double displacement reaction?

• The reaction between hydrochloric acid and sulfuric acid

• The reaction between iron (III) oxide and carbon monoxide

• The reaction between potassium hydroxide and nitric acid

• The reaction between silver nitrate and sodium chloride

Which reaction type often involves a metal reacting with an acid to produce hydrogen gas?

• Decomposition reaction
• Single displacement reaction
• Combustion reaction
• Double displacement reaction

Which of the following is NOT a characteristic of a combustion reaction?

• Formation of a solid product
• • Oxygen is a reactant

• • A single product is formed

• • Energy is released in the form of heat and light

What type of reaction occurs when iron reacts with oxygen to form iron(III) oxide?

• Combustion reaction
• Combination reaction

• Decomposition reaction
• Acid-base reaction

Which characteristic is unique to combustion reactions?

• Production of water and carbon dioxide
• Absence of oxygen requirement
• Production of heat and light
• Formation of solid products only

In a combination reaction, what typically happens to the reactants?

• They separate into multiple products
• They remain unchanged
• They disappear completely
• They combine to form a single product.

Which characteristic is common to both displacement and double displacement reactions?

• Release of energy
• Exchange of ions
• Change in color
• Formation of a gas