Ch 9 Chemical Bonds and Reactions

Front

Sodium bicarbonate is a __________________.

Back

Reactant

Front

Dissolving salt is a _____________.

Back

Physical Change

Front

Atoms are most stable when their outer shell is complete. True or False?

Back

True

Front

What do letters and numbers showing the types and number of atoms that repeat to make up a substance represent?

Back

Chemical formula

Front

What two types of atoms make a covalent bond?

Back

2 nonmetals

Front

What is a chemical bond?

Back

A force that holds atoms together in a molecule.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that undergo a chemical change, while products are the substances formed as a result of the reaction.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is a covalent bond?

Back

A type of bond formed when two nonmetals share electrons.