IPC chapter 18 review

Front

What are the common oxidation numbers of nonmetals?

Back

Most of the time, the oxidation numbers of nonmetals are negative.

Front

What is a polyatomic ion? Give an example.

Back

A polyatomic ion is a charged species composed of two or more atoms. An example is NO3-.

Front

What do subscripts in chemical formulas indicate?

Back

Subscripts in chemical formulas indicate the number of atoms in a unit of the compound.

Tags

NGSS.MS-PS1-1

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound.

Tags

NGSS.HS-PS1-3

Front

What type of bond is formed when atoms share electrons?

Back

A covalent bond is formed when atoms share electrons.

Front

What is the oxidation number of oxygen in most compounds?

Back

The oxidation number of oxygen in most compounds is -2.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond that occurs when electrons are transferred from one atom to another, resulting in the formation of charged ions.

Tags

NGSS.HS-PS1-1

Front

What is the significance of the octet rule in bonding?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is the difference between a covalent bond and an ionic bond?

Back

A covalent bond involves the sharing of electrons between atoms, while an ionic bond involves the transfer of electrons from one atom to another.

Tags

NGSS.HS-PS1-1

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Tags

NGSS.MS-PS1-1