Combustion Reaction

The products of incomplete combustion are:

• Carbon monoxide, carbon dioxide, carbon and water

• Oxygen, water, carbon and carbon dioxide

• oxygen and fuel

• carbon dioxide and water

Identify the correct requirements for combustion

• oxygen and fuel

• heat and oxygen

• fuel, oxygen and heat

• fuel, carbon dioxide and heat

The most correct definition of complete combustion is:

• any form of burning

• burning of a fuel when there is excessive oxygen

• making glucose

• when carbon dioxide is converted into glucose

Combustion is another word for:

• Drinking

• Melting

• Burning

• Digestion

Tags

NGSS.MS-PS1-5

Which type of energy change occurs during a combustion reaction?

• Endothermic.

• Exothermic.

• Isothermal.

• Adiabatic.

Tags

NGSS.HS-PS1-4

What is the role of oxygen in a combustion reaction?

• It acts as a fuel.

• It acts as a reducing agent.

• It acts as an oxidising agent.

• It acts as a catalyst.

How does the law of conservation of mass apply to combustion reactions?

• The total mass of the products is greater than the total mass of the reactants.

• The total mass of the products is less than the total mass of the reactants.

• The total mass of the products is equal to the total mass of the reactants.

• The total mass of the products is unrelated to the total mass of the reactants.

Tags

NGSS.HS-PS1-7

What is the main characteristic of a complete combustion reaction?

• It produces carbon monoxide and water.

• It produces carbon dioxide and water.

• It produces soot and water.

• It produces only water.

Which of the following is a worded equation for the combustion of propane?

• Propane + Oxygen → Carbon monoxide + Water

• Propane + Oxygen → Carbon dioxide + Water

• Propane + Oxygen → Carbon + Water

• Propane + Oxygen → Hydrogen + Water

Tags

NGSS.MS-PS1-5

Which of the following statements is true about the energy changes in combustion?

• Energy is absorbed from the surroundings.

• Energy is released to the surroundings.

• Energy remains constant.

• Energy is converted into mass.

Tags

NGSS.HS-PS1-4