Understanding Chemical Reactions and Combustion

What can affect the products formed in a chemical reaction?

• The time of day

• The shape of the container

• The temperature and amount of reactants

• The color of the reactants

What is the main difference between carbon dioxide and carbon monoxide?

• Carbon dioxide is a solid, while carbon monoxide is a gas.

• Carbon dioxide is essential for plants, while carbon monoxide is toxic to humans.

• Carbon dioxide is found in water, while carbon monoxide is found in soil.

• Carbon dioxide is toxic, while carbon monoxide is harmless.

How much carbon monoxide in the air is considered lethal?

• 10%

• 0.1%

• 5%

• 1%

What is incomplete combustion?

• Combustion that produces carbon monoxide due to low oxygen levels

• Combustion that occurs with excess oxygen

• Combustion that produces only carbon dioxide

• Combustion that happens in water

Why is carbon monoxide particularly dangerous in house fires?

• It is visible and can cause panic.

• It is less dense than air and rises quickly.

• It can cause unconsciousness before people can escape.

• It makes the flames hotter.