Recent questions in Chemistry Form 2

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Dilute hydrochloric acid was added to a compound Z of sodium. The solid reacted with the acid to form a colorless solution H and a colourless gas K which formed a white precipitate when bubbled through lime water. Write the formula of:

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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2 answers

Draw the structure of a sulphur molecule.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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Define the term transition temperature concerning the allotropes of sulphur.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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The equation below shows the action of heat on three metal nitrates.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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A sample of air contaminated with carbon monoxide and sulphur dioxide was passed through the apparatus shown in the diagram below.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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The diagram below shoes the bonding between aluminium chloride and ammonia

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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Name two other gases which could be used to reduce copper II oxide.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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Explain the following observations

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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Draw a dot (.) and cross (X) diagram to show the bonding in the molecules of : (Atomic number of carbon is 6, Oxygen is 8 and hydrogen is 1)

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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The table below shows the atomic numbers of elements F G and H.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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Distinguish between allotropes and isotopes.

asked Aug 18, 2021 in Chemistry Form 2 by anony mous

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The flow chart below shows the large scale manufacture of ammonia gas and some ammonium compounds. Study it and answer the questions that follow.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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Study the information below and answer the questions that follow. The letters do not represent the actual symbols of the elements.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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State the function of each of the following in the solvay process of production of Sodium Carbonate.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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1 answer

An ion T2- has an electronic arrangement of 2.8

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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The set-up below was used to prepare a solution of hydrogen chloride gas

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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1 answer

In terms of structure and bonding explain the following

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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1 answer

Below is a cross- section of a charcoal burner

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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1 answer

Name a compound that causes temporary hardness of water.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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Lime water is also used to soften hard water. Why is this method not preferred to soften hard water.

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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