Physical Science Final Exam Review

Front

What happens to the temperature of water during a phase change?

Back

The temperature remains constant as heat energy is used to change the water's phase.

Front

What is the process called when matter is converted to energy?

Back

Nuclear fusion.

Front

What characterizes radioactive isotopes?

Back

They have very unstable nuclei.

Front

How does carbon-14 differ from carbon-12?

Back

Carbon-14 has more neutrons than carbon-12.

Front

What is the dissolved substance in a solution called?

Back

Solute.

Front

What is the term for the substance that does the dissolving in a solution?

Back

Solvent.

Front

What is the heating curve of water?

Back

A graph that shows the temperature changes of water as it is heated and undergoes phase changes.

Front

What is the difference between covalent and ionic bonds?

Back

Covalent bonds involve sharing electrons, while ionic bonds involve transferring electrons.

Front

What is the law of conservation of mass?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is an example of a physical change?

Back

Melting ice.