Matter and Its Interactions

Front

What is a coefficient in a chemical formula?

Back

A coefficient is a large number in a chemical formula that indicates the number of molecules involved in a reaction.

Front

What subatomic particle identifies an element?

Back

The proton identifies an element; it is the positively charged particle found in the nucleus of an atom.

Front

What is conduction?

Back

Conduction is the transfer of energy through direct contact between materials.

Front

What is the basic building block of all matter?

Back

The atom is the basic building block of all matter.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a substance using symbols for its constituent elements.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles in the nucleus of an atom that contribute to the atomic mass and stability of the nucleus.

Front

What is the state of matter characterized by a definite shape and volume?

Back

The solid state of matter is characterized by a definite shape and volume.

Front

What is the process of energy transfer through fluids called?

Back

Convection is the process of energy transfer through fluids (liquids and gases) due to the movement of the fluid itself.

Front

What is the atomic mass?

Back

The atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu).