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Why is that the surrounding temperature of ice cubes is cold and has condensation? What process (reaction) takes place? Is it endothermic or exothermic ?

Why is that the surrounding temperature of ice cubes is cold and has condensation? What process (reaction) takes place? Is it endothermic or exothermic ?

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 57QRT
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  • Why is that the surrounding temperature of ice cubes is cold and has condensation? What process (reaction) takes place? Is it endothermic or exothermic ?
  • In the photo given, 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: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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