Strong Acids (they dissociate into separate ions)

• hydrochloric acid (HCl)
• hydrobromic acid (HBr)
• hydroiodic acid (HI)
• nitric acid (HNO3)
• perchloric acid (HClO4)
• sulfuric acid (H2SO4)
  

Strong Bases (again, they dissociate)

• lithium hydroxide (LiOH)
• sodium hydroxide (NaOH)
• potassium hydroxide (KOH)

Weak Acids (they don't dissociate)

• phosphoric acid (H3PO4)
• carbonic acid (H2CO3)
• acetic acid (CH3CO2H)
• oxalic acid (H2C2O4)
• tartaric acid (H2C4H4O6)
• citric acid (H3C6H5O7)
• asprin (HC9H8O4)

Weak Bases

• ammonia (NH3)