Recent questions in Chemistry Form 3

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State the mathematical expression of Boyle’s Law

asked Jul 23, 2021 in Chemistry Form 3 by anony mous

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What observations were made when Hydrogen Sulphide was bubbled through Zinc Nitrate?

asked Jul 22, 2021 in Chemistry Form 3 by Moniquek

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What is meant by bleaching?

asked Jul 18, 2021 in Chemistry Form 3 by mkaliwao

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Give the name of the reagent which when reacted with concentrated hydrochloric acid produce chlorine gas.

asked Jul 9, 2021 in Chemistry Form 3 by anony mous

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Study the flow chart below and answer the questions that follow

asked Jul 9, 2021 in Chemistry Form 3 by anony mous

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If 25.0cm3 of 0.1 MH2S04 solution neutralized a solution containing 1.06g of sodium carbonate in 250cm3 of solution, calculate,

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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Study the flow chart below and answer the questions that follow.

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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When calcium carbonate was added to a solution of dry hydrogen chloride in methyl benzene there was no observable reaction. Explain.

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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50cm3 of oxygen gas diffused through a porous plug in 80 secs. How long will it take 100cm3 of sulphur (IV) oxide to diffuse through the same plug? (S = 32 0= 16)

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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A gaseous compound consists of 86% carbon and 14% hydrogen by mass. At s.t.p, 3.2dm3 of the compound has a mass of 6g. (C = 12 H = 1 molar gas volume at s.t.p = 22.4dm3)

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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Nitrogen reacts with oxygen according to the equation.

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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An aqueous solution of hydrogen chloride can be prepared as shown in the diagram below.

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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Identify substances : (2 marks) Gas B Liquid C Gas D Which property of concentrated sulphuric (VI) acid is being demonstrated by formation of the black solid (

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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Explain why hard water flowing in lead pipes may be safer for drinking than soft water flowing in the same pipes

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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In terms of structure and bonding, explain why propane (RMM=44 ) is a gas at room temperature while ethanol (RMM=46) is a liquid at room temperature

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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The diagram below shows an experiment involving chlorine water.

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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State Graham’s law of diffusion.

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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A solution contains 5.3g of X2CO3 in 500 cm3 of solution. 25.0 cm3 of this solution required 20.0 cm3 of 0.25M hydrochloric acid for complete neutralization. The equation for the reaction is;

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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Study the equation below and answer the questions that follow:

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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Dry ammonia gas was passed over heated copper(II) oxide.

asked Jul 5, 2021 in Chemistry Form 3 by anonymous

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