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Write the importance of MOET....

Write the importance of MOET.

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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
  1. Define the terms 'metallurgy' and 'gangue'.

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  2. Explain, why carbon can reduce copper but not calcium oxide to calcium...

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  3. Write the importance of MOET.

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  4. Write chemical equations for the reactions taking place at the two ele...

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  5. Write any two differences between morula and blastula.

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  6. What happens when aluminium wire is heated in air? Give equation.

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  7. How is impure metal refined electrolytically?

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  8. Explain the meaning of malleable and ductile

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  9. Why do solids have a definite volume ?

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  10. Giving examples, differentiate between roasting and calcination.

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

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  12. T/F Carbonate and sulphide ores are usually converted into oxides.

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  13. State two ways to prevent the rusting of iron

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  14. What is 24 carat gold? How would you convert into 18 carat gold?

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  15. Sodium amalgam is a mixture of ............. and mercury.

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  16. The colour of hydrated copper sulphate is……………and that of anhydrous co...

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  17. T/F The process of covering iron with Zn is called galvanization.

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  18. Fill ups Out of Al,Zn and Ag only…………..cannot displace hydrogen form d...

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  19. Define the terms metals, non-metals and metaloids. Give one example in...

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  20. Discuss the reactivity of metals with oxygen with examples.

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