Recent questions in Chemistry

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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 6 days ago in Chemistry Form 2 by 0769881XXX

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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 6 days ago in Chemistry Form 2 by 0769881XXX

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how can i know soluble and insoluble salt

asked May 10 in Chemistry Form 2 by 0706247XXX

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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) calculate a)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 in Chemistry Form 3 by 0768347XXX

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3 answers

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

asked May 3 in Chemistry Form 1 by 0722331XXX

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describe how to prepare chloride of aluminium by direct synthesis.

asked Apr 29 in Chemistry Form 2 by 0725320XXX

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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 in Chemistry Form 3 by 0740744XXX

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calculate amount of moles and pressure of methane

asked Apr 28 in Chemistry Form 4 by 0740042XXX

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2 answers

how will I obtain pure samples of

asked Apr 24 in Chemistry Form 1 by 0700201XXX

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1 answer

prepare solid CuCO3

asked Apr 21 in Chemistry Form 2 by 0798093XXX

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0 answers

how to prepare lead sulphate

asked Apr 21 in Chemistry Form 2 by 0798093XXX

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16 answers

what is chemistry ?

asked Apr 21 in Chemistry Form 1 by 0718815XXX

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5 answers

state Charles law

asked Mar 31 in Chemistry Form 3 by sophinenaliakanyongXXX

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answer the following questions

asked Mar 22 in Chemistry Form 2 by 0713784XXX

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5 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 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 in Chemistry Form 1 by 0713784XXX

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3 answers

asked Mar 20 in Chemistry Form 3 by 0719355XXX

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0 answers

ostward process

asked Mar 18 in Chemistry Form 3 by 0702797XXX

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1 answer

define molar gas volume

asked Mar 17 in Chemistry Form 3 by 0740458XXX

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1 answer

State the grahams law

asked Feb 11 in Chemistry Form 3 by 0759082XXX

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