- What is matter?
Matter is anything that possesses mass and occupies space.
- What are the two main categories of matter?
Elements and compounds.
- What is an element?
A substance made up of entirely one type of atom.
- What is a compound?
A substance consisting of two or more different elements chemically bonded together.
- What does the Kinetic Theory of Matter state?
All matter is composed of tiny, discrete particles in constant motion.
- What are the fundamental particles of matter?
Atoms, molecules, and ions.
- What is an atom?
The smallest particle of an element that retains the chemical properties of that element.
- What is a molecule?
Two or more atoms chemically bonded together.
- What is an ion?
An atom or molecule that has gained or lost electrons, resulting in a net electrical charge.
- What are the three primary states of matter?
Solid, liquid, and gas.
- Describe the arrangement of particles in a solid.
Closely packed in a fixed arrangement.
- Describe the arrangement of particles in a liquid.
Closely packed, but less tightly than solids, and can move around.
- Describe the arrangement of particles in a gas.
Far apart with weak attractive forces.
- What is evaporation?
The process of a liquid changing to a gas.
- What is melting?
The process of a solid changing to a liquid.
- What is boiling?
The process of a liquid changing rapidly to a gas.
- What is freezing?
The process of a liquid changing to a solid.
- What is condensation?
The process of a gas changing to a liquid.
- What is sublimation?
The process of a solid changing directly to a gas.
- What happens to the temperature of naphthalene during melting?
It remains constant.