EASY
AS and A Level
IMPORTANT
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Ammonia is made from its elements in the Haber process. Give the formula of ammonia.

Important Questions on Nitrogen
MEDIUM
AS and A Level
IMPORTANT
Ammonia is made from its elements in the Haber process. Write a balanced equation for the formation of ammonia in the Haber process.

HARD
AS and A Level
IMPORTANT
Ammonia is made from its elements in the Haber process. Explain how the ammonia molecule acts as a base when it dissolves in water. Include an equation in your answer.

EASY
AS and A Level
IMPORTANT
Ammonia is made from its elements in the Haber process. For the ammonium ion give formula.
(A) (B) (B)
Enter your correct answer as A, B or C.

MEDIUM
AS and A Level
IMPORTANT
Ammonia is made from its elements in the Haber process. For the ammonium ion give the shape, including its bond angles.

EASY
AS and A Level
IMPORTANT
Give the formulae of the following ammonium salt: ammonium chloride.
(Enter your correct answer as )

EASY
AS and A Level
IMPORTANT
Give the formulae of the following ammonium salt: ammonium nitrate.
(Enter your correct answer as )

EASY
AS and A Level
IMPORTANT
Give the formulae of the following ammonium salt: ammonium sulphate.
(Enter your correct answer as )

MEDIUM
AS and A Level
IMPORTANT
Phosphorus is the element below nitrogen in Group 15 of the periodic table. Its atomic number is .
Which molecule shows phosphorus in its lowest oxidation state?
