Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them.

(a) Ammonia

(b) Carbon monoxide

(c) Hydrogen chloride

(d) Aluminium fluoride

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Solution

$(a) N H_{3} (b) C O (c) H C I (d) A I F_{3}$

$N : H \times 3 C : O H : C I A I : F \times 3$

$14 : 1 \times 312 : 161 : 35.5 27 : 19 \times 3$

$14 : 33 : 41 : 35.5 9 : 19$

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Question 17
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them.

(a) Ammonia

(b) Carbon monoxide

(d) Aluminium fluoride

(e) Magnesium sulphide

Question 17
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them.

(a) Ammonia

(b) Carbon monoxide

(d) Aluminium fluoride

(e) Magnesium sulphide

Q. Give the chemical formulae for ammonia and compute the ratio by mass of the combining elements.

Translate the following statements into chemical equations and then balance them.

(a) Hydrogen gas combines with nitrogen to form ammonia.

(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Translate the following statements into chemical equations and then balance them.

(A) Hydrogen gas combines with nitrogen to form ammonia

(B) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(C) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. [3 MARKS]

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Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (a) Ammonia (b) Carbon monoxide (c) Hydrogen chloride (d) Aluminium fluoride

(a)NH3 (b)CO (c)HCI (d)AIF3 N:H×3 C:O H:CI AI:F×3 14:1×3 12:16 1:35.5 27:19×3 14:3 3:4 1:35.5 9:19

Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them.

(a) Ammonia

(b) Carbon monoxide

(c) Hydrogen chloride

(d) Aluminium fluoride

$(a) N H_{3} (b) C O (c) H C I (d) A I F_{3}$

$N : H \times 3 C : O H : C I A I : F \times 3$

$14 : 1 \times 312 : 161 : 35.5 27 : 19 \times 3$

$14 : 33 : 41 : 35.5 9 : 19$