Physical Science Review Chemistry Semester

Front

What happens to energy during an exothermic reaction in relation to the surroundings?

Back

Energy is released to the surroundings.

Front

What type of compounds have high melting and boiling points?

Back

Ionic compounds.

Front

What is the name of the particle that moves around the nucleus?

Back

Electron.

Front

Define a solid in terms of its shape and size.

Back

Matter that has a definite shape and a definite size.

Front

Which type of bond involves the transfer of electrons?

Back

Ionic bond.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from the surroundings.

Front

What is the primary characteristic of ionic bonds?

Back

They form between metals and nonmetals through the transfer of electrons.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.