Recent questions without a selected answer

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Describe how burning can distinguish CH2CH2 from CH3CH3

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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Study the flow diagram below and then answer the questions that follow.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

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Draw and name two isomers of Pentane()

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

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Air was passed through several reagents as shown below

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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The diagram below shows the relationship between the physical states of matter.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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The curves below represent the variation of temperature with time when pure and impure samples of a solid were heated separately.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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In an experiment 3.36g of iron fillings were added to excess copper (II) sulphate. Calculate the mass of copper that was deposited. (CU= 63.5, Fe = 56)

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

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The structure of two molecules of water can be represented as shown below.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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Give two applications of chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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What is paper chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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A piece of burning magnesium ribbon was plunged into a gas jar containing sulphur (IV) oxide.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

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Name two types of bees kept by the farmers

asked Jul 27, 2021 in Agriculture Form 3 by anony mous

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Why is the use of manure discouraged in carrot production?

asked Jul 27, 2021 in Agriculture Form 1 by anony mous

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umuhimu was mandhari katika kuijenga riwaya hii

asked Jul 27, 2021 in Chozi la Heri by aburi

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Name four predisposing factors of animal diseases within an animal’s body.

asked Jul 27, 2021 in Agriculture Form 2 by anony mous

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Below is a method of identifying a cow

asked Jul 27, 2021 in Agriculture Form 3 by anony mous

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GSTRU and P belong to the same period in the periodic table. The ions formed by the atoms are as below:-

asked Jul 27, 2021 in Chemistry Form 2 by anonymous

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Name the process which take place when white sugar changes to black solid when mixed with excess concentrated sulphuric acid.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

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Name the process which take place when Fe2+ changes to Fe3+

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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Calculate the amount of K2O that would be contained in 600kg of a compound fertilizer,

asked Jul 27, 2021 in Agriculture Form 2 by anony mous

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