Reactions & their indicators - Chemistry

• Chemical Reaction


  Change where elements form new substances.
• Reactants


  Chemicals present at the start of a reaction.
• Products


  New chemicals produced in a reaction.
• Word Equation


  Describes reactants and products in a reaction.
• Everyday Chemical Reaction


  Common reactions occurring in daily life.
• Energy Change


  Energy is absorbed or released during reactions.
• Indicators of Reaction


  Signs that a chemical reaction has occurred.
• Rusting


  Oxidation of metals, typically iron, forming rust.
• Digesting Food

  Biochemical process of breaking down food.
• Candle Burning


  Combustion reaction producing heat and light.
• Flame Test


  Identifies elements based on flame color.

  
• Magnesium Oxide


  Product formed from magnesium and oxygen reaction.
• Iron Sulfide


  Product formed from iron and sulfur reaction.
• Sodium Hydroxide


  Product formed when sodium reacts with water.
• Hydrogen Oxide


  Water, produced from burning hydrogen and oxygen.
• Lead Iodide


  Solid product from lead nitrate and potassium iodide.
• Carbon Dioxide


  Gas produced when baking powder reacts with vinegar.
• Sodium Chloride


  Product formed from hydrochloric acid and sodium hydroxide.
• Exothermic Reaction


  Reaction that releases heat to the surroundings.
• Fizzing


  Indicates gas production during a chemical reaction.
• Precipitate


  Solid formed from a reaction in solution.
• Flame Color


  Characteristic color produced by burning elements.
• Magnesium Chloride


  Product formed from magnesium and hydrochloric acid.
• Hydrochloric Acid


  Strong acid used in various chemical reactions.
• Baking Powder


  Sodium hydrogen carbonate, reacts to produce gas.
• Kinetic Energy


  Energy of motion, released in explosions.
• Sound Energy


  Energy produced as sound during reactions.
• Light Energy


  Energy emitted as light during reactions.
• Heat Energy


  Thermal energy released or absorbed in reactions.