2024 - Fall Final Exam Modified Review

Front

What is an anion?

Back

An anion is a negatively charged ion formed by gaining electrons.

Front

What types of atoms make a covalent bond?

Back

A covalent bond is formed between two nonmetals.

Front

How many covalent bonds does H2O have?

Back

H2O has 2 covalent bonds.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, such as coffee or hydrogen peroxide.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition, such as trail mix.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons between a metal and a nonmetal, while covalent bonds involve the sharing of electrons between two nonmetals.

Front

What is the molecular formula for water?

Back

The molecular formula for water is H2O.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is a liquid's characteristic in terms of particle arrangement?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to take the shape of their container.

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.