Easily Confused
A characteristic of a pure substance that can be observed without changing it into another substance
What is physical property?
Anything that has mass and takes up space
What is matter
Negatively charged particle
What is electron
The total energy of motion and the particles of a substance
What is thermal energy
The change of state from a liquid or a solid to a gas
What is vaporization
A characteristic of a pure substance that describes its ability to change into different substances
Two or more atoms held together by covalent bonds
What is molecule
The control center of the cell
What is nucleus
Energy of motion
What is kinetic energy
The change of state from liquid to gas
What is evaporation
Substance formed by the chemical combination of two or more elements in definite proportions
What is compound
Contains only one type of atom, cannot be broken down by chemical or physical means
What is element atom
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
What is proton
Stored energy that results from the position or shape of an object
What is potential energy
The change of state from gas to liquid
What is condensation
A mixture in which the composition is not uniform throughout
What is heterogeneous mixture
The force that holds two atoms together
What is chemical bond
A small particle in the nucleus of the atom, with no electrical charge
What is neutron
Energy stored in chemical bonds
What is chemical energy
Change of state directly from a solid to a gas without becoming liquid
What is sublimation
A mixture in which substances are evenly distributed throughout the mixture
What is homogeneous mixture
The study of matter and how it changes
What is chemistry
The specific amount of energy an electron has
What is energy level
A form of energy that travels through space as waves
The system of units used by scientists to measure the properties of matter
What is International System of Units