Recent questions in Chemistry Form 1

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2 answers

What is the observation made during combustion?

asked Dec 23, 2021 in Chemistry Form 1 by GrahamHumphrey

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2 answers

carbon iv oside

asked Dec 22, 2021 in Chemistry Form 1 by DrMjanja

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1 answer

Hydrated copper ( || )sulphate exist as blue crystals while anhydrous copper ( || )sulphate is a white powder. Describe a laboratory experiment that can be used to show that the action of heat on hydrated copper (||)sulphate is a reversible reaction

asked Dec 21, 2021 in Chemistry Form 1 by Danielkioko

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this pain is passed over heated magnesium ribbon and hydrogen gas was collected as shown in the diagram below. (i) name the gas p (ii) write an equation of the reaction that takes place in the commbustion tube. (iii) state three precautions necessary at the end of the experiment.

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

In an experiment dry hydrogen gas is passed over hot copper (ii) oxide in a combustion tube as shown in the diagram below.(b) describe how copper could be obtained from the mixture containing copper (ii) oxide

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

when water reacts with potassium metal the hydrogen produced ignites explosively on the surface of water.(i) what causes ignition.(ii) write an equation to show how this ignition occurs

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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1 answer

Hydrogen can reduce coppers oxide but not aluminium oxide.Explain

asked Dec 19, 2021 in Chemistry Form 1 by AgnesMusungu

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2 answers

Why is water not suitable for chromatography?

asked Dec 18, 2021 in Chemistry Form 1 by Flexx

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1 answer

What is a desiccator use for in the laboratory?

asked Nov 25, 2021 in Chemistry Form 1 by Sosajr6

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2 answers

Factors to consider when collecting a gas by displacement of;1 air2 water

asked Nov 22, 2021 in Chemistry Form 1 by tungi

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1 answer

why pH solutions in a beaker goes down and solution becomes more acidic after one day in preparation of hydrogen gas

asked Nov 18, 2021 in Chemistry Form 1 by marymwango

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2 answers

what is a solution

asked Nov 5, 2021 in Chemistry Form 1 by isi

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2 answers

Hydrogen chloride gas is bubbled through water and resultant solution divided to 3 portions. To the first portion three drops of silver nitrate solution. State what was observed and write the equation.

asked Nov 5, 2021 in Chemistry Form 1 by baliks

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1 answer

what is acid

asked Oct 26, 2021 in Chemistry Form 1 by su6

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1 answer

what is acid

asked Oct 26, 2021 in Chemistry Form 1 by su6

0 votes

1 answer

Describe an experimental procedure that can be used to extract oil from nut seeds

asked Oct 8, 2021 in Chemistry Form 1 by PilotNC

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1 answer

a piece of chromatography paper was spotted with coloured inks obtained from pens

asked Oct 7, 2021 in Chemistry Form 1 by ryankk

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4 answers

what is acid?

asked Sep 24, 2021 in Chemistry Form 1 by Robertbengat

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8 answers

Why are most apparatus made of glass?

asked Sep 16, 2021 in Chemistry Form 1 by bintyseyyid

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1 answer

Write an equation to show the effect of heat on:

asked Aug 30, 2021 in Chemistry Form 1 by anony mous

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