CHEMISTRY: A Science for the 21st Century

Cards (73)

  • What are examples of fossil fuels?
    oil, coal, asphalt
  • What is a form of energy released from the nucleus?
    Nuclear Energy
  • What are the two ways that Nuclear Energy can be performed?
    Nuclear Fission and Nuclear Fusion
  • What do you call the compound created from rusting?
    Iron oxide
  • What is the excess waste from plastics and even from polymer clothes with a percentage of plastic?
    microplastic
  • What is LCD made of?
    Liquid crystals
  • What kind of conductor do laptops usually use?
    semi-conductors
  • What compound is a semi-conductor usually made of?
    Germanium Arsenide
  • What is an example of a Natural Pesticide?
    Urea
  • What is the study of motion of fluids and the forces acting on solid bodies immersed in fluids?
    Hydrodynamics
  • What kind of approach does a scientific method show?
    Systematic approach
  • Another term for observation?
    recognition
  • another term for representation?
    correlation
  • what kind of results does a scientific method need?

    constant
  • What part of scientific method must be tested and modified before being stated or claimed?
    hypothesis
  • what is a tentative explanation for a set of observations?
    hypothesis
  • what is a concise statement of a relationship between phenomena that's always the same under same conditions?
    law
  • what is an example of law in physics?
    f=ma
  • what is a unifying principle that explains a boy of facts and or those laws that are based on them?
    theory
  • What things are visible to the naked eye?
    macroscopic
  • what things are not visible to the naked eye?

    microscopic
  • what is one of the 7-millennium problems that's already solved?
    tessellations
  • who made that millennium problem that's already been solved?
    Poincare
  • What is that millennium problem about fluid dynamics?
    Navier-stokes equation
  • who created the theory of relativism?
    albert einstein
  • how many years did Einstein become stagnant with his theory of relativism?
    8 years
  • who did Einstein hire to help him with his study of relativism in around 1912?
    Marcel Grossmann
  • what is the study of matter and the changes it undergoes?

    chemistry
  • it is anything that occupies space and has mass or volume ?
    matter
  • it is a form of matter that has definite composition and distinct properties?
    substance
  • what is a combination of 2 or more substances wherein the substances retain their distinct properties?

    mixture
  • what is the type of solution wherein the composition is uniform at the atomic or molecular level?
    homogeneous mixture
  • what is a tupe of solution wherein the composition is not uniform?
    heterogeneous mixture
  • what can be used to separate a mixture into its pure components?

    physical means
  • what is a substance that can't be separated into smaller or simpler substances by chemical means?
    element
  • how many elements are there?
    119
  • how many natural elements are there?
    82
  • how many elements are synthetic?
    37
  • what is a substance composed of atoms of 2 or more elements chemically united in fixed proportions?
    compound
  • what is a type of matter where molecules are held close together in an orderly fashion and has little to no movement?
    solid