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Fe(2)O(3)+2AlrarrAl(2)O(3)+2Fe The abo...

`Fe_(2)O_(3)+2AlrarrAl_(2)O_(3)+2Fe`
The above reaction is an example of :

A

Combination reactions

B

Decomposition reaction

C

Displacement reaction

D

Double decomposition reaction

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Fe_(2)O_(3)+2Al rarr Al_(2)O_(3)+2Fe Name the compound which is oxidized in the above reaction.

Balance the chemical equation Fe_(2)O_(3)+Al rarr Fe+Al_(2)O_(3) . Write the steps of balancing.

Assertion (A) : The reaction 2Al + Fe_2O_3 rarr Al_2O_3 + 2Fe + heat is to join railings of railway tracks . Assertion (R) : Molten iron will be produced in a thermite process.

Al_((s)) + fe_(2)O_(3(s)) to Al_(2) O_(3(s)) + Fe_((s)) (atomic masses of Al = 27U, Fe = 56U, and O = 16U) 2Al_((s)) +Fe_(2)O_(3(s)) to Al_(2)O_(3(s)) + 2Fe_((s)) , is a balanced equation. (2 xx 27)U + (2xx 56 + 3xx 16)U to (2xx 27 + 3 xx 16) U + (2 xx 56) U {:(54U+160U,,to102U+112U),(or2" mol" + "1 mol",,to 1"mol" + 2"mol"),(54g + 160g ,, to 102 g + 112 g):} Suppose that your asked to calculate the amount of aluminium, required to get 1120 kg of iron by the above reaction.

Fe_(2)O_(3(s))+2Al_((s))rarr 2Fe_((s))+Al_(2)O_(3(s)) is a/an …………….

Calculate the amount of aluminium, required to get 1120 kg of iron from the given chemical equation. 2Al_((s))+Fe_(2)O_(3(s))rarrAl_(2)O_(3(s))+Fe_((s))" " (atomic mass of Al = 27U, Fe = 58U and O = 16 U)

Exothermic reaction among the following is A) Cr_(2) O_(3) + 2All to 2 Cr + Al_(2) O_(3) B) Fe_(2) O_(3) + 2Al to 2 Fe + Al_(2) O_(3) C) 3 Mn_(3) O_(4) + 8 Al to 4 Al_(2) O_(3) + 9 Mn

Na_(2)CO_(3) + Fe_(2)O_(3) rarr A + CO_(2) What is A tn the reaction?

VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
  1. Carbon dioxide is added to 112 g of calcium oxide. The product formed ...

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  2. Imagine what would happens if we do not standard symbols for elements....

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  3. Fe(2)O(3)+2AlrarrAl(2)O(3)+2Fe The above reaction is an example of :

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  4. What happens when dil. Hydrochloric acid is added to iron filing ? Cho...

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  5. 2PbO((s))+C((s))rarr2Pb((s))+CO(2(g)) Which of the following stateme...

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  6. The chemical equation BaCl(2)+Na(2)SO(4)rarrBaSO(4)+2NaCl represents...

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  7. The reaction of formation hydrogen chloride from hydrogen and chlorine...

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  8. What is neutralization ? Explain an activity to demonstrate neutraliza...

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  9. Define chemical combination and give an example.

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  10. Explain an activity to demonstrate decomposition.

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  11. What is chemical decomposition ? Explain with an example.

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  12. What will happen when calcium carbonate was heated?

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  13. Show that lead nitrate on heating produces nitrogen dioxide.

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  14. Explain how decomposition reaction takes place.

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  15. Explain the process of electrolysis of water.

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  16. How do you separate O2 and H2 from water in your chemical laboratory?

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  17. What is a photochemical reaction? Give one example.

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  18. What changes do you observe when silver bromide exposed to sunlight?

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  19. How do you demonstrate displacement reaction?

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  20. The gas liberated when zinc reacts with dilute HCI is

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