Chemistry Chapter 1

  1. extensive properties
    • depend on the amount of matter that is present
    • include volume mass and amount of energy in substance
  2. intensive properties
    • do not depend on the amount of matter present.
    • melting point, boiling point, density, and ability to conduct electricity and heat.
  3. physical property
    • characteristic that can be observed or measured without changing the identity of the substance.
    • melting point, boiling point
  4. physical change
    • change in a substance that does not involve a change in the identity of the substance.
    • grinding, cutting, melting, and boiling of material.
  5. change of state
    physical change of a substance from one state to another
  6. solid
    • matter that has definite volume and shape
    • particles are packed together by strong attractive forces.
  7. liquid
    • matter that has a definite volume but no definite shape.
    • particles are close together but can still mow around each other.
  8. Gas
    • matter that has neither definite volume or shape
    • particles move rapidly and are very spaced out so they have less force
  9. plasma
    high temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms.
  10. chemical property
    substances ability to undergo chugs that transform it into different substances.
  11. chemical change or reaction
    change in which one or more substances are converted into different substances.
  12. reactants
    substances that react in a chemical change
  13. products
    substances that are formed by the chemical change
  14. Law of Conservation of energy
    energy cannot be created or destroyed
  15. mixture
    blend of two or more kinds of matter, each retains its own identity and properties.
  16. homogeneous mixture
    • uniform in composition
    • Also known as soltion
  17. heterogeneous
    not uniform throughout
  18. Basic Research
    • is carried out for the sake of increasing knowledge
    • study of properies
    • how and why an action occurs
  19. Applied Research
    • generally carried out to solve a problem
    • find a cure for cancer or disease
  20. Technological Development
    • typically involves the production and use of products that improve our quality of life.
    • computers
    • •catalytic converters in cars
    • • biodegradable materials
  21. Pure Substances
    • same composition
    • same characteristics property
  22. groups or families
    contain similar chemical properties
  23. periods
    chemical properties change regularly across
Card Set
Chemistry Chapter 1