Chemistry Chapter 7

What are renewable energy sources?

• Energy sources that are finite and deplete over time

• Energy sources that are continually and rapidly replenished from natural resources

• Energy sources that are only available in certain regions

• Energy sources that are man-made and synthetic

What is nuclear fission?

• The combination of two light nuclei to form a heavier nucleus

• The splitting of a large nucleus into smaller ones with the release of energy

• The process of converting hydrogen into helium

• The absorption of energy by a nucleus

Which elements are typically involved in nuclear fission?

• Hydrogen and helium

• Carbon and oxygen

• Uranium and plutonium

• Nitrogen and sulfur

What is nuclear fusion?

• The splitting of a large nucleus into smaller ones

• The combination of two low-mass isotopes under extreme conditions

• The process of converting uranium into plutonium

• The release of energy by a single atom

Where do nuclear fusion reactions commonly occur?

• In nuclear reactors

• In the Earth's core

• In the Sun

• In the ocean

What initiates nuclear fission in uranium?

• Neutrons

• Protons

• Electrons

• Photons

What is a chain reaction?

• A reaction where all reactants are consumed immediately.

• A reaction in which one of the products becomes a reactant, making it self-sustaining.

• A reaction that requires constant external energy to proceed.

• A reaction that occurs only in living organisms.

What is the primary difference between a nuclear power plant and a conventional power plant?

• The use of steam turbines

• The source of energy from fission of atomic nuclei

• The presence of a cooling tower

• The use of a generator

What is the chemical formula for the uranium fuel used in the reactor core?

• UO2

• U3O8

• U2O3

• UO3

Which type of radiation has a shorter wavelength than visible light?

• Gamma rays

• Radio waves

• Infrared radiation

• Microwaves