Recent questions without an upvoted answer

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What is an alkali

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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A white solid dissolve in water to form a colourless solution. The colourless solution forms a white precipitate with Ammonia solution but dissolve in excess alkali. The colourless solution forms a white precipitate with Lead (II) Nitrate solution. The white Precipitate dissolve on warming to form a colourless solution.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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Name the compound below

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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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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The apparatus shown below was used to investigate the effect of Carbon (II) Oxide on Lead (II) Oxide.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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Hydrogen Sulphide gas was bubbled into two solutions of metallic nitrates as shown in the flow diagram below

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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When a solid B was heated in a test-tube, it gave off two gases. The two gases were separated by passing them through a plug of glass wool in a test-tube as shown below.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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A solution contains 29.1g per litre of aluminium Sulphate. Calculate the number of Sulphate ions in 350cm3 of the solution.(Al = 27, S = 32, O = 16) Avogadro’s constant = 6.0 x 1023.

asked Aug 17, 2021 in Chemistry Form 3 by anonymous

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When magnesium is burnt in air it reacts with both oxygen and nitrogen gas giving a white ash. Write two equations for the reactions that take place.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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Determine the number of neutrons in 1818O

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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What are isotopes?

asked Aug 17, 2021 in Chemistry Form 2 by anonymous

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Differentiate between strong and weak acids.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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Name the indicator that can be used in the laboratory to tell the pH of lemon juice.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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State one disadvantage of using flower extracts as acid – base indicators.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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“Aliyeumwa na nyoka akiona ung’ong’o hushtuka .” Weka dondoo hil katika muktadha wake.

asked Aug 17, 2021 in Tumbo Lisiloshiba na Hadithi Nyingine by anony mous

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1 answer

Ubadhirifu wa mali ya umma umetamalaki katika hadithi ya Shibe Itatumaliza. Jadili kwa kutoa mifano mwafaka.

asked Aug 17, 2021 in Tumbo Lisiloshiba na Hadithi Nyingine by anony mous

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Jadili matatizo yanayowakumba wakazi wa madongoporomoka katika Tumbo Lisiloshiba.

asked Aug 17, 2021 in Tumbo Lisiloshiba na Hadithi Nyingine by anony mous

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1 answer

“Dada Umu, Di, ni mimi, Ni ndugu yenu. Ni hai . Auntie Sauna alishikwa na polisi.” Weka dondoo hili katika muktadha wake.

asked Aug 17, 2021 in Chozi la Heri by anony mous

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2 answers

“Wamenimaliza… wamenigeuka.” Weka dondoo hili katika muktadha wake.

asked Aug 17, 2021 in Kigogo by anony mous

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