Chem. Rev. Chapter 6 Carbon and Carbon oxides

Chapter 6

Carbon and Carbon oxides

By Michelle Zou

Why is carbon essential to life on Earth?

• 6th element on the periodic table

• A compound found mainly in living things is known as an organic compound.

• Carbon is the main element in organic compounds

Carbon

• has four electrons in the last energy level

• can form four bonds with other atoms

• can for chains or rings

Fill in the Blanks

Multiple Choice

Which of the following statements about graphite and diamond is true?

• They have the same crystal structure

• They have the same degree of hardness

• They have the same electrical conductivity

• They can undergo the same chemical reactions

Multiple Choice

What structure is shown in the diagram?

• Diamond
• Graphite
• Carbon fiber
• Carbon nanotubes

Multiple Choice

Which one cannot conduct electricity?

• Graphene

• Nanotube

• Graphite

• Diamond

Types of combustion?

• complete combustion -The combustion that takes place with sufficient amount of oxygen

• incomplete combustion - the combustion that takes place with insufficient amount of oxygen

Multiple Choice

What are the products of incomplete combustion of carbon

• carbon dioxide

• carbon monoxide

• water

• carbon

REDUCTION

• REMOVAL OF OXYGEN FROM A METAL

• CARBON ACTS AS A REDUCING AGENT

Multiple Choice

What property of carbon does the following reaction show?

3C+Fe2O3 == CO2 +2 Fe

• reduction by carbon
• combustion

• conductivity of heat

• electrical conductivity

Multiple Choice

What is the name given to solid CO₂?

• Dry water

• Dry ice

• Wet Ice

• Carbon dioxide's ice

Multiple Choice

CO₂ is _____ than air.

• heavier

• lighter

• of equal density

• may be lighter or heavier depending on reactants.

Multiple Choice

Carbon dioxide is a

• combustible gas

• supporter of combustion

• nether a combustible gas nor a supporter of combustion

• combustible gas but a non supporter of combustion

Multiple Choice

Aquatic plants perform photosynthesis using

• CO₂ present in air

• O₂ present in air

• CO₂ dissolved in water

• O₂ dissolved in water

Multiple Choice

Incomplete combustion is harmful to humans because it ___________________.

• increases the level of sugar in the blood

• produces large amounts of carbon dioxide

• decreases the amount of sugar in the blood

• produces carbon monoxide that reduces the level of oxygen in the blood

Multiple Select

both CO2 and SO2 turns lime water milky

• true

• false

Multiple Choice

Carbon monoxide is:

• A poisonous gas that is colorless, odorless, and tasteless

• A product of fuel burning appliances

• Dangerous when inhaled because it displaces oxygen in the blood, depriving vital organs of oxygen

• All of the above

Multiple Choice

Can carbon monoxide dissolve in water?

• No

• Yes

Multiple Choice

Which substance is used to prove that an unknown gas is carbon dioxide?

• a glowing splint

• hydrogen gas

• plain drinking water

• lime water

Multiple Choice

Carbon dioxide is added to soft drinks like Coca-cola and Sprite. Why is this done?

• To improve the flavor

• To make the drink interesting

• To ensure that the drink is free of bacteria

• To add bubbles to the drink