muwhehehehehe Flashcards
is anything that has mass and has volume
Matter
is the amount of matter
Mass
proposed that a certain point, everything was made up of air
Anaximenes
Fire is the source of natural resources
Heraclitus
first to propose that matter was composed of small, indestructible particles
Leucippus and Democritus
meaning “uncuttable”
Atomos
Popularized atomism
Epicurus of Samos
Solid to gas
Sublimation
Gas to Solid
Deposition
Liquid to solid
freezing
Properties that can be observed or measured without changing their composition
Physical Property
describes chemical change or reaction a matter undergo, and this is change in its composition.
Chemical Property
Simplest form of matter
Elements
Basic building block of most cells in the body
Carbon
Makes up the protein and nucliec acids
Nitrogen
Present in ATP molecule, the energy currency of the body.
Phosphorus
Major component of cellular fluids; involved in transmission of nerve impulses
Potassium
Found in amino acids that make up proteins.
Sulfur
When two or more elements combined chemically
Compound
components are not evenly distributed in the sample and can thus be physically identified.
Heterogeneous Mixture
Appearance, properties and composition are uniform throughout a sample.
Homogeneous Mixture
is a homogeneous mixture that may contain one or more components.
Solution