Study

Chemistry Unit Test

  •   0%
  •  0     0     0

  • What do the atoms in image B represent?
    Mixture
  • What do the atoms in image C represent?
    Element
  • How many neutrons does Mg have?
    12
  • True or False: Baking is a chemical change.
    True
  • True or False: Water (H2O) is an example of a compound.
    True
  • How many protons does P have?
    15
  • Which subatomic particle has a neutral charge?
    Neutron
  • A substance with a Ph of 2 is...
    an acid
  • Is this a model of a solid, liquid, or gas?
    Solid
  • How many electrons does Mg have?
    12
  • Which subatomic particle has a negative charge?
    Electron
  • A substance with a Ph of 7 is...
    Neutral
  • How many electrons does P have?
    15
  • A base is an ionic compound that produces...
    OH- ions in water
  • How many protons does Mg have?
    12
  • Define Chemistry
    The study of matter and how matter reacts with matter
  • A substance with a Ph of 10 is...
    a base
  • What do the atoms in image A represent?
    Compound
  • Is this a model of a solid, liquid, or gas?
    Gas
  • How many neutrons does P have?
    16
  • Which subatomic particle has a positive charge?
    Proton
  • Is this a model of a solid, liquid, or gas?
    Liquid
  • An acid is an ionic compound that produces...
    H+ ions in water