Chapter 6, Lesson 4 Multimedia
- For molecules to react, they need to collide with enough energy.
- If molecules hit with too little energy, they can just bounce off without reacting.
- If they collide with enough energy, bonds can break and new bonds can form in a chemical reaction.
- The reactants just sit there until energy is added with the flame.
- The added energy is enough to make molecules move fast enough to react.
- The energy produced in the reaction is enough to keep the reactants breaking bonds and making new bonds. The demonstration shown in this video is very dangerous. Do not attempt to perform this demonstration.
- Lesson 1: Water is a Polar Molecule
- Lesson 2: Surface Tension
- Lesson 3: Why Does Water Dissolve Salt?
- Lesson 4: Why Does Water Dissolve Sugar?
- Lesson 5: Using Dissolving to Identify an Unknown
- Lesson 6: Does Temperature Affect Dissolving?
- Lesson 7: Can Liquids Dissolve in Water?
- Lesson 8: Can Gases Dissolve in Water?
- Lesson 9: Temperature Changes Dissolving
- Lesson 1: What is a Chemical Reaction?
- Lesson 2: Controlling the Amount of Products in a Chemical Reaction
- Lesson 3: Forming a Precipitate
- Lesson 4: Temperature and the Rate of a Chemical Reaction
- Lesson 5: A Catalyst and the Rate of Reaction
- Lesson 7: Energy Changes in Chemical Reactions
- Lesson 8: pH and Color Change
- Lesson 9: Neutralizing Acids and Bases
- Lesson 10: Carbon Dioxide Can Make a Solution Acidic