Chapter 1 key Terms Flashcards
Atom
Smallest particle of an element that
retains the chemical characteristics of
that element
Element
Substance that cannot be separated
into simpler substances by a chemical
process
Compound
➢A substance composed of characteristic proportions of two or more elements chemically bonded together ➢ Can be separated by chemical processes into component elements
Scientific Method
- gather data via observations and experiments
- identify patterns or trends in the collected data
- summarize their findings with a law
- formulate a hypothesis
- with time a hypothesis may evolve into a theory
Chemistry
The study of the matter
Matter
Anything with mass occupying space
Compound
A compound is a pure substance made up of two or more different atom types held
together by a chemical bond.
Chemical bond
A chemical bond is a force that holds atoms together.
Molecule
➢ Groups of atoms with no charge
Ions
➢ Atoms that have a positive or negative charge
Mixtures
A combination of two or more pure substances.
heterogeneous mixture
A combination of two or more pure substances (Non-uniform distribution)
homogeneous mixture
A combination of two or more pure substances (Uniform distribution)
What does it mean to be a Solid
To have definite shape and definite volume
What does it mean to be a liquid
To have indefinite shape and definite
volume
