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Write the electron-dot structure for sod...

Write the electron-dot structure for sodium oxide.

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MBD-METALS AND NON METALS-EXAMPLE
  1. Write equations for the reactions of :calcium and potassium with water...

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  2. What would you observe when zinc is added to a solution of iron sulpha...

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  3. Write the electron-dot structure for sodium oxide.

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  4. Why do ionic compounds have high melting points?

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  5. Define the terms: mineral

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  6. Define the terms: ore

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  7. What chemical process is used for obtaining a metal from its oxide?

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  8. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  9. Which metals do not corrode easily?

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  10. What are alloys?

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  11. Which of the following pairs will give displacement reactions:

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  12. Which of the following methods is suitable for preventing an iron fryi...

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  13. An element reacts with oxygen to give a compound with a high melting p...

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  14. Food cans are coated with tin and not with zinc because:

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  15. You are given a hammer, a battery, a bulb ,wires and a switch How coul...

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  16. You are given a hammer, a battery, a bulb ,wires and a switch. Assess...

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  17. What are amphoteric oxides? give two examples of amphoteric oxides?

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  18. Name two metals which will displace hydrogen from dilute acids, and tw...

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  19. In the electrolytic refining a metal M what would you take as the anod...

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  20. Pratyush took sulphur powder on a spatula and heated it. he collected ...

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