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Describe which of the experiments are exothermic or endothermic. Explain on how each reaction should be defined. Part 1: Elephant Toothpaste Materials: 120 mL 3% hydrogen peroxide 1.5 liter empty plastic bottle Dry Yeast Food coloring Dishwashing Liquid Basin Warm water Spoon or Small Medicine Cup Paper or glass cup Funnel (if available) Procedures: 1. Prepare a place where you want to perform your experiment. It is preferable to do it in the bathroom for easy cleaning and washing. 2. Place the empty bottle in the basin. Then, pour in the 120 mL hydrogen peroxide it into the bottle. 3. Squirt 1 tbsp. of liquid detergent into the bottle, and swirl gently to mix. 4. Add in 1 packet of food coloring. 5. In a cup, mix together 1 tbsp. of yeast and 3 tbsp. of warm water. Stir for about 30 seconds. 6. Pour the yeast mixture into the bottle. Watch the reaction unfold. Keep a distance away from the experiment. Part 2: Ice Breaker Materials: Ice (can be ice cubes or in plastic bags) Rock salt Ice pick (optional) 2 Water Glasses Spoon Small Medicine Cup or Measuring Cups Procedure: 1. Get some ice from the freezer. If you bought one in the store, crush the ice using an ice pick into smaller pieces. 2. Label the glasses as Glass 1 and 2. Place the ice in both glasses. Observe the corresponding effect of the ice in its container for at least 1 minute. 3. After a while, sprinkle 3 tsp. of salt in Glass 1. Wait for 5-15 minutes or if there is something significant occurs. 4. Check the effect of salt to the ice and compare it to its previous state. You can feel the container and see differences on its appearance based on observation. 5. Compare the levels of melted water between the two glasses. Separate it from the ice by pouring it in other glasses. You can measure it with a medicine measuring cup or other tools.

Describe which of the experiments are exothermic or endothermic. Explain on how each reaction should be defined. Part 1: Elephant Toothpaste Materials: 120 mL 3% hydrogen peroxide 1.5 liter empty plastic bottle Dry Yeast Food coloring Dishwashing Liquid Basin Warm water Spoon or Small Medicine Cup Paper or glass cup Funnel (if available) Procedures: 1. Prepare a place where you want to perform your experiment. It is preferable to do it in the bathroom for easy cleaning and washing. 2. Place the empty bottle in the basin. Then, pour in the 120 mL hydrogen peroxide it into the bottle. 3. Squirt 1 tbsp. of liquid detergent into the bottle, and swirl gently to mix. 4. Add in 1 packet of food coloring. 5. In a cup, mix together 1 tbsp. of yeast and 3 tbsp. of warm water. Stir for about 30 seconds. 6. Pour the yeast mixture into the bottle. Watch the reaction unfold. Keep a distance away from the experiment. Part 2: Ice Breaker Materials: Ice (can be ice cubes or in plastic bags) Rock salt Ice pick (optional) 2 Water Glasses Spoon Small Medicine Cup or Measuring Cups Procedure: 1. Get some ice from the freezer. If you bought one in the store, crush the ice using an ice pick into smaller pieces. 2. Label the glasses as Glass 1 and 2. Place the ice in both glasses. Observe the corresponding effect of the ice in its container for at least 1 minute. 3. After a while, sprinkle 3 tsp. of salt in Glass 1. Wait for 5-15 minutes or if there is something significant occurs. 4. Check the effect of salt to the ice and compare it to its previous state. You can feel the container and see differences on its appearance based on observation. 5. Compare the levels of melted water between the two glasses. Separate it from the ice by pouring it in other glasses. You can measure it with a medicine measuring cup or other tools.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Identify which of the two experiments is an endothermic and exothermic reaction. Explain how each reaction should be define. 

Describe which of the experiments are exothermic or endothermic. Explain on how each reaction should be defined. Part 1: Elephant Toothpaste Materials: 120 mL 3% hydrogen peroxide 1.5 liter empty plastic bottle Dry Yeast Food coloring Dishwashing Liquid Basin Warm water Spoon or Small Medicine Cup Paper or glass cup Funnel (if available) Procedures: 1. Prepare a place where you want to perform your experiment. It is preferable to do it in the bathroom for easy cleaning and washing. 2. Place the empty bottle in the basin. Then, pour in the 120 mL hydrogen peroxide it into the bottle. 3. Squirt 1 tbsp. of liquid detergent into the bottle, and swirl gently to mix. 4. Add in 1 packet of food coloring. 5. In a cup, mix together 1 tbsp. of yeast and 3 tbsp. of warm water. Stir for about 30 seconds. 6. Pour the yeast mixture into the bottle. Watch the reaction unfold. Keep a distance away from the experiment. Part 2: Ice Breaker Materials: Ice (can be ice cubes or in plastic bags) Rock salt Ice pick (optional) 2 Water Glasses Spoon Small Medicine Cup or Measuring Cups Procedure: 1. Get some ice from the freezer. If you bought one in the store, crush the ice using an ice pick into smaller pieces. 2. Label the glasses as Glass 1 and 2. Place the ice in both glasses. Observe the corresponding effect of the ice in its container for at least 1 minute. 3. After a while, sprinkle 3 tsp. of salt in Glass 1. Wait for 5-15 minutes or if there is something significant occurs. 4. Check the effect of salt to the ice and compare it to its previous state. You can feel the container and see differences on its appearance based on observation. 5. Compare the levels of melted water between the two glasses. Separate it from the ice by pouring it in other glasses. You can measure it with a medicine measuring cup or other tools.
Transcribed Image Text:Describe which of the experiments are exothermic or endothermic. Explain on how each reaction should be defined. Part 1: Elephant Toothpaste Materials: 120 mL 3% hydrogen peroxide 1.5 liter empty plastic bottle Dry Yeast Food coloring Dishwashing Liquid Basin Warm water Spoon or Small Medicine Cup Paper or glass cup Funnel (if available) Procedures: 1. Prepare a place where you want to perform your experiment. It is preferable to do it in the bathroom for easy cleaning and washing. 2. Place the empty bottle in the basin. Then, pour in the 120 mL hydrogen peroxide it into the bottle. 3. Squirt 1 tbsp. of liquid detergent into the bottle, and swirl gently to mix. 4. Add in 1 packet of food coloring. 5. In a cup, mix together 1 tbsp. of yeast and 3 tbsp. of warm water. Stir for about 30 seconds. 6. Pour the yeast mixture into the bottle. Watch the reaction unfold. Keep a distance away from the experiment. Part 2: Ice Breaker Materials: Ice (can be ice cubes or in plastic bags) Rock salt Ice pick (optional) 2 Water Glasses Spoon Small Medicine Cup or Measuring Cups Procedure: 1. Get some ice from the freezer. If you bought one in the store, crush the ice using an ice pick into smaller pieces. 2. Label the glasses as Glass 1 and 2. Place the ice in both glasses. Observe the corresponding effect of the ice in its container for at least 1 minute. 3. After a while, sprinkle 3 tsp. of salt in Glass 1. Wait for 5-15 minutes or if there is something significant occurs. 4. Check the effect of salt to the ice and compare it to its previous state. You can feel the container and see differences on its appearance based on observation. 5. Compare the levels of melted water between the two glasses. Separate it from the ice by pouring it in other glasses. You can measure it with a medicine measuring cup or other tools.
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