A.2 4 - acids and bases

• Acids

  • pH < 7
  • Hide a hickey ate an icky bite a delicious
• Bases

  • pH > 7
• Acid properties

  • H+ atom
  • Litmus red
  • Pheniophlatin clear
  • Bromothymol yellow
  • Found in food
• Bases properties

  • OH- molecule
  • Litmus blue
  • Pheniophlatin pink
  • Bromothymol blue
  • Found in chemical cleaners
• Neutralization

  • When acids and bases react the pH becomes more neutral
  • Products: water + a salt