Ammonia Chemical Bonding Worksheet Page 11
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28(c)
The main reaction is the formation of ammonia from nitrogen and hydrogen.
(i)
Complete and balance the equation for this reaction.
.......................(g) + .......................(g) → .........NH
(g)
3
(2)
(ii)
Name the metal catalyst used in this reaction.
...........................................................................................................................
(1)
(iii)
This reaction does not work successfully at room temperature (20 °C) and needs a
much higher temperature of 400 °C. Explain why.
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
(2)
(d)
Draw a diagram to show the arrangement of the electrons in a molecule of ammonia. The
electron arrangement of each atom is hydrogen 1 and nitrogen 2.5.
(2)
(Total 11 marks)
Page 11 of 28
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