Chem topic 9

Cards (39)

  • what trade places in double displacement?
    cations trade places
  • where are cations in written formula?
    they are written first
  • acid is a proton_
    donor
  • base is a proton _
    receiver
  • acids _ pH
    lower
  • bases _ pH
    raise
  • are there more or less H+ in acids?
    more
  • are there more or less H+ in bases?
    less
  • what is in bases more than H+?
    OH
  • what is the pH equation?
    pH = -log[H+(mol/L)]
  • what does mol/L mean?
    molarity
  • what does H+ represent in pH equation?
    concentration (molarity)
  • what is aqueous?
    chemicals that dissolve in water
  • what are solids?
    chemicals that don't dissolve in water
  • solubility
    if something is soluble or insoluble in water
  • if everything is aqueous at the end of a reaction,
    no reaction actually happened
  • in acid reactions, there with always be an _ to donate protons
    H
  • in acid reactions, _ will always be the acid/proton donor
    H
  • net ionic equations
    show only the ions that participate in the reaction
  • spectator ions
    ions that do not participate in a reaction
  • total ionic equation
    writing out all ions
  • you should write the _ for net ionic equations
    states
  • when ions are soluble in water they are
    pulled apart
  • water is more dense as a
    liquid
  • water is a liquid at
    room temperature
  • why is water a liquid at room temp?
    water is polar covalent
  • water has a _ boiling point
    high
  • water can _ a lot of molecules
    dissolve
  • why can water dissolve a lot of molecules?
    it is very polar, nearly ionic, stabilizes ions
  • what is IM for 0.0-0.5?
    non polar covalent
  • what is IM for 0.51-1.6?
    polar covalent
  • what is IM for more than 2.0?
    ionic
  • 1.6-2.0 gap is _ if it involves a metal
    ionic
  • 1.6-2.0 gap is _ if it involves only non metals
    polar covalent
  • what is the equation for pOH?
    pOH = -log [OH (mol/L)]
  • how do you find pH from pOH?
    subtract pOH from 14
  • you have to do _ to find pH
    stoicheometry
  • why do you have to do stoicheometry to find pH?
    have to know ratio of H+
  • pH is calculated with,
    H+ ions