Chemistry

• Acid + Metal Oxide ~>

  Salt + Water
• Acid + Metal Hydroxide ~>

  Salt + Water
• Acid + Metal Carbonate ~>

  Salt + Water + Carbon Dioxide
• Acid + Metal ~>

  Salt + Hydrogen
• State the reactivity series from most reactive to least reactive

  K, Na, Li, Ca, Mg, C, Zn, Fe, H, Cu
• State the equation for Atom Economy

  Mr of desired product / Mr of all reactants x 100
• State the equation for percentage yield

  mass of product made / max theoretical mass of product x 100
• State the equation for percentage mass

  Ar x number of atoms of that element / Mr of the compound x 100
• State the equation for moles given concentration and volume

  moles = concentration x volume
• State the equation for concentration given moles and volume

  concentration = moles / volume
• State the equation for g/dm3 given concentration and Mr

  g/dm3 = concentration x Mr
• How do you convert cm to dm?

  divide by 1000
• What is the molar volume given room temperature and RTP

  24dm3
• State the equation for moles given mass and Mr

  moles = mass / Mr
• State the equation for moles given volume and molar volume

  moles = volume / molar volume
• State the equation for volume given moles and molar volume

  volume = moles x molar volume
• What are elements in the modern periodic table arranged in?

  in order of increasing atomic (proton) number
• What were elements in the old periodic table arranged in?

  Atomic mass
• Name three strong acids

  hydrochloric, sulfuric, nitric
• Name three weak acids

  ethanoic, carbonic, citric
• What ions do acids produce in an aqueous solution?

  H+
• Describe the alpha particle scattering experiment

  • alpha particles fired at thin sheet of gold
  • Rutherford expected them to pass straight through or be slightly deflected at most as the positive charge was believed to be spread out in the atom
  • small number deflected backwards
  • so mass concentrated in the centre (nucleus)
• In order of what time they were in, list the scientists involved in the discovery of the atom from earliest to most recent and what they discovered.

  John Dalton (solid spheres), J.J Thompson (plum pudding), Ernest Rutherford (scattering experiment), Bohr (revised nuclear model), James Chadwick (neutrons)