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Flashcards

Chapter E: Units, Measurements & Problem Solving

Alexandra Bozan General Chemistry Inglês 18 flashcards

speed / velocity formula

Flashcards do conjunto (18)

  1. 1SI Base UnitsLength: meter - m
    Mass: kilogram - kg
    Time: second - s
    Temperature: Kelvin - K
    Amt. of substance: Mole - mol
    Electric current: Ampere - A
    Luminous intensity: Candela - cd
  2. 2velocity of light in a vaccum3.00 * 10^8 m/s
  3. 3kinetic energythe energy due to motion
  4. 4Change in temp1K = 1C = 1.8F
  5. 5Fahrenheit to CelsiusC = (F - 32) / 1.8
  6. 6Celsius to KelvinK = C + 273.15
  7. 7SI Prefix Multiplierspeta: P - 10^15
    tera: T - 10^12
    giga: G - 10^9
    mega: M - 10^6
    kilo: k - 10^3
    deci: d - 10^-1
    centi: c - 10^-2
    milli: m - 10^-3
    micro: u - 10^-6
    nano: n - 10^-9
    pico: p - 10^-12
    femto: f - 10^-15
  8. 8density- the ratio of an objects mass to its volume
    - d = m/v
    - physical property
    - depends on temperature
    - intensive property
  9. 9intensive property- independent of the amount of the substance
    - used to identify substances because they depend on the type of substance, not the amt.
  10. 10extensive property- depends on the amt of a substance
    - mass is an extensive property
  11. 11The density of copper decreases as temp increases. Does the copper sample become lighter, heavier, expands or contracts?expands
  12. 12law of conservation of energy- energy is neither created nor destroyed
    - although energy can change from one type to another, it can flow from one object to another, the total qty of energy does not change, it remains constant
  13. 13difference between speed and velocityVelocity is speed w/directiondifference between speed and velocity
  14. 14speed / velocity formuladistance = displacement
    speed = velocity    speed / velocity formula
  15. 15joule (J)- SI unit of energy
    - mass * v^2
    - kg * m^2/s^2
    - small amt of energy
    - use kiloJoule kJ instead
  16. 16Kinetic Energy formula- (1/2 * mass * v^2) or (1/2 * j)
    - (1/2)(kg)(m/s)^2
  17. 17formula: volume of a cylinderv = pi * r^2 * h
  18. 18formula: volume of a spherev = 4/3 * pi * r^3

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General Chemistry (Chem I) FlashCards sobre Chapter E: Units, Measurements & Problem Solving, criado por Alexandra Bozan em 18-12-2018.
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Alexandra Bozan
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