Recent questions in Chemistry

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12 answers

chemical symbols of the following elements copper and lead

asked Jun 30, 2023 in Chemistry Form 1 by 0752871XXX

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2 answers

what's the use of nitrogen one oxide?

asked May 30, 2023 in Chemistry Form 3 by 0792151XXX

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1 answer

An element as 3 isotopes 40/19X(0.01%) 39/19X(93.1%) 41/19X(6.89%). using dots or crosses,draw the atomic structure of X

asked May 26, 2023 in Chemistry Form 2 by 0769881XXX

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3 answers

An element as 3 isotopes 40/19X(0.01%) 39/19X(93.1%) 41/19X(6.89%). using dots or crosses,draw the atomic structure of X

asked May 26, 2023 in Chemistry Form 2 by 0769881XXX

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3 answers

how can i know soluble and insoluble salt

asked May 10, 2023 in Chemistry Form 2 by 0706247XXX

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1 answer

In an experiment an unknown mass of anhydrous sodium carbonate was dissolved in water and the solution made up to 250cm³. 25cm³ of this is neutralised 20cm³ of 0.25M nitric acid. (Na=23.0,C=12.0,O=16.0) calculatea)moles of nitric acid used.b)moles of sodium carbonate in 25cm³ of the solution.c) mass of unknown sodium carbonate level

asked May 5, 2023 in Chemistry Form 3 by 0768347XXX

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4 answers

which method of separation of mixtures is applied in removing fat from milk

asked May 3, 2023 in Chemistry Form 1 by 0722331XXX

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1 answer

describe how to prepare chloride of aluminium by direct synthesis.

asked Apr 29, 2023 in Chemistry Form 2 by 0725320XXX

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4 answers

on complete combustion on oxygen of 0.42grams of gaseous hydrocarbon x,it gave 1.32grams of carbon dioxide and 0.54grams of water determine the empirial formula

asked Apr 29, 2023 in Chemistry Form 3 by 0740744XXX

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Calculate the amount of moles at room temperature and pressure of methane which has a volume of 1450cm , temperature of 34.8 and M.G.V of 24000cm

asked Apr 28, 2023 in Chemistry Form 4 by 0740042XXX

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2 answers

how will I obtain pure samples of

asked Apr 24, 2023 in Chemistry Form 1 by 0700201XXX

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1 answer

prepare solid CuCO3

asked Apr 21, 2023 in Chemistry Form 2 by 0798093XXX

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1 answer

Starting with lead two carbonate explain how u would prepare a pure sample of lead two sulphate

asked Apr 21, 2023 in Chemistry Form 2 by 0798093XXX

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33 answers

what is chemistry ?

asked Apr 21, 2023 in Chemistry Form 1 by 0718815XXX

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11 answers

state Charles law

asked Mar 31, 2023 in Chemistry Form 3 by sophinenaliakanyongXXX

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2 answers

answer the following questions

asked Mar 22, 2023 in Chemistry Form 2 by 0713784XXX

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10 answers

carbon (iv) oxide sublimes at (-78°c)it is called dry ice (a)Why it is called dry ice (b)it is used for keeping ice-cream cold.why it is preferred over ordinary ice? (c)Name other 3 substance that behave like dry ice

asked Mar 22, 2023 in Chemistry Form 1 by 0713784XXX

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2 answers

describe how you can obtain pure crystal of calcium chloride from a mixture containing aluminium chloride, calcium chloride and lead ( ll) chloride

asked Mar 22, 2023 in Chemistry Form 1 by 0713784XXX

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3 answers

what is a mole

asked Mar 20, 2023 in Chemistry Form 3 by 0719355XXX

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1 answer

ostward process

asked Mar 18, 2023 in Chemistry Form 3 by 0702797XXX

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