formulas and equations

• oxygen gas


  O2
• hydrochloric acid


  HCl
• sulfuric acid

  H2SO4
• ammonia


  NH3
• hydrogen gas


  H2
• carbon dioxide


  CO2
• water


  H2O
• nitric acid


  HNO3
• sodium hydroxide


  NaOH
• potassium hydroxide


  KOH
• calcium hydroxide


  Ca(OH)2
• acid + base = neutral
• acid + metal oxide = salt + water + carbon dioxide
• acid + metal = salt + hydrogen
• acid + metal = salt + water + carbon dioxide + carbonate
• nitrogen + hydrogen = ammonia
• anode - Cu = Cu(2+) + 2e-
• cathode - Cu(2+) + 2e- = Cu