Abstract The purpose of this experiment was to perform chemical reactions, with not only a focus on the various types of possible changes, but also on the amazing "magical" uses that they can serve. The technique used in this laboratory was to separate it into multiple mini-experiments and to make observations on each separately. These mini-experiments followed the "Types of Reactions  order that's on the first page of the lab sheet, so the type of reactions were as followed: 1. Combination 2. Decomposition 3. (Single) Displacement 4. Double Displacement 5. Rearrangement 6. Mixed-Type Reaction The final results for the various mini-experiments were as followed: Reaction Exothermic or Endothermic Reactant Product Combination Reaction Exothermic Solid strip of metallic Mg and fire from Bunsen burner. Burned strip of Mg, ash, and a bright burning light. Decomposition Reaction: Invisible Ink Endothermic 5mL of 3M sulfuric acid on paper towel, water, and heat. "Ink  is visible due to water drying and only carbon being left. Reversible Decomposition: Combination Reactions. A. Dehydration of Blue Vitriol (Copper [II] Sulfate) B. Rehydration of Anhydrous Copper (II) Sulfate A. Endothermic B. Exothermic A. Blue Vitriol and Bunsen burner heat. B. Filter paper, anhydrous copper (II) sulfate and water. A. Anhydrous copper (II) sulfate; white powder. B. Blue Vitriol and heat. Single Replacement Reaction Exothermic Copper wire and silver (I) nitrate Copper nitrate in fuzzy form Double Displacement Reaction: Milk from Water CaCl + Na CO Both clear liquids Calcium carbonate settles at the bottom. Solution is milky white. Mixed Type Reactions: A. Disappearing Ink B. The Alka-Seltzer effect A. Cannot tell whether exothermic or endothermic B. Exothermic A. Concentrated ammonium and phenolphthalein. Both colorless liquids. Filter paper and purple solution. B. "Milk  water and hydrochloric acid. A. Purple liquid with strong odor. Filter pape