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Explain the following. Give one of the...

Explain the following.
Give one of the necessary requirements for a combustible substance to burn.

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**Step-by-Step Text Solution:** 1. **Understanding Combustible Substances**: A combustible substance is a material that can catch fire and burn in the presence of heat and oxygen. These substances are essential for combustion to occur. 2. **Identifying Requirements for Combustion**: For combustion to take place, certain conditions must be met. One of the key requirements is the presence of oxygen. 3. **Role of Oxygen**: Oxygen acts as a supporter of combustion. It is necessary for the chemical reaction that occurs during burning. Without oxygen, a combustible substance cannot ignite or continue to burn. ...
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  1. Explain the following. Give one of the necessary requirements for a ...

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  2. What is the cause of suspended particulate matter in the atmosphere?

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  3. What is the characteristic of an ideal fuel?

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  4. What is the SI unit of calorific value?

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  5. Which of these is a solid fuel?

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  6. Dark zone is also called zone of .

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  7. In which zone of a candle flame : complete combustion of fuel takes pl...

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  8. What changes the colours of the flame of a candle?

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  9. When does a substance produce flame during combustion?

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  10. What is an identifying feature of a carbon dioxide fire extinguisher?

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  11. Which two chemicals react in a soda-acid fire extinguisher?

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  12. Why is the use of water avoided to extinguisher electrical fires?

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  13. How can we extinguish a fire?

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  14. Which of these is an example of incomplete combustion?

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  15. In which reaction a combustible substance reacts with oxygen to give c...

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  16. Why is sodium metal kept under kerosene oil ?

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  17. Which of these is an example of rapid combustion?

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  18. Which of the following is a supporter of combustion?

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  19. Which of these is an inflammable substance?

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  20. Which of these is an example of a non-combustible substance?

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  21. What type of change is combustion?

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