3. rusting D Answer each in a few words only. 1. Wooden pieces are hammered together to make a cottage. 2. What will happen to the blue colour of copper sulphate solu 3. Write any one characteristic of chemical reactions. 4. What conditions are required for rusting of iron? E Answer each in one or two sentences. 1. Give one example of: (a) a physical change (b) a chemical change 2. What is a precipitate? Give an example. 3. Define rusting. 4. Define electroplating. 5. What is crystallisation? F Answer each in 5-6 sentences. 1. Describe an activity to show a physical change. 2. Describe an activity to show a chemical change. 3. State the various characteristics of chemical reactions. 4. Describe the ways to prevent rusting. 5. What is crystallisation? Describe it with the help of an activ HINK AND ANSWER Two beakers with equal amount of water were taken. An iron n beakers was topped with a thick layer of oil. Which of the iron nail- When a soda water bottle is opened,

3. rusting D Answer each in a few words only. 1. Wooden pieces are hammered together to make a cottage. 2. What will happen to the blue colour of copper sulphate solu 3. Write any one characteristic of chemical reactions. 4. What conditions are required for rusting of iron? E Answer each in one or two sentences. 1. Give one example of: (a) a physical change (b) a chemical change 2. What is a precipitate? Give an example. 3. Define rusting. 4. Define electroplating. 5. What is crystallisation? F Answer each in 5-6 sentences. 1. Describe an activity to show a physical change. 2. Describe an activity to show a chemical change. 3. State the various characteristics of chemical reactions. 4. Describe the ways to prevent rusting. 5. What is crystallisation? Describe it with the help of an activ HINK AND ANSWER Two beakers with equal amount of water were taken. An iron n beakers was topped with a thick layer of oil. Which of the iron nail- When a soda water bottle is opened,

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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