Chemistry final

Front

Balance the following equation: Zn(C2H5)2 + O2 => ?

Back

Zn(C2H5)2 + 5O2 => ZnO + 4CO2 + 5H2O

Front

Which particles are responsible for creating chemical bonds between atoms?

Back

Electrons

Front

An atom's valence electrons are located where?

Back

Outermost electron shell

Front

How many valence electrons does Beryllium have?

Back

2

Front

Which particles are responsible for preventing the protons of an atom's nucleus from repelling each other?

Back

Neutrons

Front

What is the definition of a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

Front

What is the octet rule?

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 the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

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.

Front

What is the role of neutrons in an atom?

Back

Neutrons help to stabilize the nucleus by preventing protons from repelling each other due to their positive charges.