7.Silver loses its lusand moisture.C. Give two examples for each of the following :Opaque materialsNon-lustrous materials.1.2.3.Translucent materials4. Miscible liquidsHard materials5.6.Gases soluble in water7. Materials that are denser than waterD. Short answer questions :1. Why do silver bangles lose their shine after a white?2.What are lustrous materials?3. Why are cooking utensils not made of wood or plastic?State two important properties of metals which are used to make jewelleryList any three properties of metals.4.5.E. Long answer questions :1.What do you mean by classification? Why is it important?2. Define material. Why do materials float or sink in water?Describe any3.five physical properties of materials.4. Distinguish between opaque and transparent materials.5. Distinguish between miscible and immiscible liquids.6. Explain with two examples, how gases that dissolves in water are useful to7. What do you understand by hard and soft materials?8. Explain why a coin sinks in water but a leaf floats on water.НOTSjat puts a solid object in a bucket of water. He observed that it floats jusExplain why it did not sink.What is the hardest material in our body?58

As per guidelines we are supposed to answer only one question. Question C is being answered.

C. Give two examples for each of the following : 1. Opaque materials 2. Non-lustrous materials. 3. Translucent materials 4. Miscible liquids 5. Hard materials 6. Gases soluble in water 7. Materials that are denser than water

C. Give two examples for each of the following : 1. Opaque materials 2. Non-lustrous materials. 3. Translucent materials 4. Miscible liquids 5. Hard materials 6. Gases soluble in water 7. Materials that are denser than water

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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