Atomic State Of Matter: Definitions Flashcards
Matter
Is anything that has mass and takes up space
Atom
Smallest part of a chemical element that can exist
Element
A substance that only contains one type of atom
Molecule
A group of atoms joined together
Particle
Things that make up matter
A physical change
When atoms form in a new way to give us new mixture but do not create a new substance
Mixture
Two or more different substances physically combined; the physical change is easily reversible
Substance
Matter that has the same make up and properties throughout
Mixture
Two or more different substances physically combined; the physical change is easily reversible.
Compound
When two of more substances are chemically combined. This change is very difficult to reverse and a new substance is formed.
Law of Conservation of Mass
During a chemical reaction, the total mass of the products equal to the total mass of the reactants.