Unit 5 - Energy changes in chemical reaction

• Mg: magnesium
• Fe: iron
• Mg: magnesium
• N2: nitrogen gas
• K: Potassium
• Al: aluminium
• H2: hydrogen
• H2SO4: sulfuric acid
• Cu: copper
• HCl: hydrocholoric acid
• Ca: calcium
• O2: oxygen
• H2O: water
• Br2: Bromine
• Cl2: chlorine
• C: carbon
• CO2: carbon dioxide
• Zn: Zinc
• Na: sodium
• HNO3: nitric acid
• Test for CO2:

  • use lime water -> produce a cloudy/milky white solution