Chemical and Nuclear Energy

Front

What is activation energy?

Back

The minimum energy needed by the reactants to form the products.

Front

What type of nuclear radiation is emitted with a positive charge and consists of helium nuclei?

Back

Alpha radiation.

Front

What are the characteristics of exothermic reactions?

Back

I. They have negative ΔH values II. The products have a higher amount of energy released than the reactants had of energy taken III. The products are more energetically stable than the reactants.

Front

What is gamma radiation?

Back

Nuclear decay made of pure energy with no mass or charge.

Front

What happens to energy when bonds are made?

Back

Energy is released.

Front

What is nuclear fission?

Back

A nuclear reaction where the nucleus of an atom splits into smaller parts, releasing a large amount of energy.

Front

What is nuclear fusion?

Back

A nuclear reaction where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the difference between kinetic and potential energy in chemical reactions?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on position or arrangement.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.