Combustion and Corrosion Reactions Quiz

What type of reaction is a combustion reaction?

• Endothermic reaction

• Exothermic reaction

• Neutral reaction

• Acidic reaction

What is required for complete combustion to occur?

• Limited supply of oxygen

• Unlimited supply of oxygen

• No oxygen

• Carbon dioxide

Which of the following is a product of complete combustion of methane?

• Carbon monoxide and water

• Carbon and water

• Carbon dioxide and water

• Soot and water

What is a characteristic of incomplete combustion reactions?

• They are 'clean'

• They produce carbon dioxide

• They produce carbon monoxide

• They require an unlimited supply of oxygen

Which of the following is an example of a complete combustion reaction?

• CH4 + O2 → C + 2H2O

• 2CH4 + 3O2 → 2CO + 4H2O

• CH4 + 2O2 → CO2 + 2H2O

• CH4 + O2 → CO + H2O

What is produced in incomplete combustion that makes it 'dirty'?

• Carbon dioxide

• Water

• Carbon

• Oxygen

What are the main factors that cause most metals to corrode?

• Water, air, or chemicals

• Heat, light, or sound

• Pressure, temperature, or humidity

• Electricity, magnetism, or radiation

What is corrosion?

• A physical change in metals

• A chemical reaction that forms other compounds from metals

• A process of melting metals

• A method of strengthening metals

What compounds are formed when copper corrodes by reacting with gases in the air?

• Copper(II)oxide and copper(II)carbonate

• Copper(II)hydroxide and copper(II)carbonate

• Copper(II)sulfide and copper(II)carbonate

• Copper(II)chloride and copper(II)carbonate

What is the chemical equation for the corrosion of copper?

• 2Cu + H₂O + CO₂ + O₂ → Cu(OH)₂ + CuCO₃

• 2Cu + H₂O + CO₂ + O₂ → CuO + CuCO₃

• 2Cu + H₂O + CO₂ + O₂ → CuS + CuCO₃

• 2Cu + H₂O + CO₂ + O₂ → CuCl₂ + CuCO₃