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Recent questions in Chemistry Form 1
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What is the observation made during combustion?
asked
Dec 23, 2021
in
Chemistry Form 1
by
GrahamHumphrey
water and hydrogen
0
votes
2
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carbon iv oside
asked
Dec 22, 2021
in
Chemistry Form 1
by
DrMjanja
simple classification of substances
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votes
1
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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
simple classification of substances
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0
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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
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Chemistry Form 1
by
AgnesMusungu
water and hydrogen
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1
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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
water and hydrogen
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1
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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
water and hydrogen
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1
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Hydrogen can reduce coppers oxide but not aluminium oxide.Explain
asked
Dec 19, 2021
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Chemistry Form 1
by
AgnesMusungu
water and hydrogen
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2
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Why is water not suitable for chromatography?
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Dec 18, 2021
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Chemistry Form 1
by
Flexx
acids
bases and indicators
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1
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What is a desiccator use for in the laboratory?
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Nov 25, 2021
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Chemistry Form 1
by
Sosajr6
simple classification of substances
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votes
2
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Factors to consider when collecting a gas by displacement of;1 air2 water
asked
Nov 22, 2021
in
Chemistry Form 1
by
tungi
air and combustion
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1
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why pH solutions in a beaker goes down and solution becomes more acidic after one day in preparation of hydrogen gas
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Nov 18, 2021
in
Chemistry Form 1
by
marymwango
water and hydrogen
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2
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what is a solution
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Nov 5, 2021
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Chemistry Form 1
by
isi
simple classification of substances
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2
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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.
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Nov 5, 2021
in
Chemistry Form 1
by
baliks
water and hydrogen
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1
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what is acid
asked
Oct 26, 2021
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Chemistry Form 1
by
su6
acids
bases and indicators
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votes
1
answer
what is acid
asked
Oct 26, 2021
in
Chemistry Form 1
by
su6
acids
bases and indicators
0
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1
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Describe an experimental procedure that can be used to extract oil from nut seeds
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Oct 8, 2021
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Chemistry Form 1
by
PilotNC
simple classification of substances
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votes
1
answer
a piece of chromatography paper was spotted with coloured inks obtained from pens
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Oct 7, 2021
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Chemistry Form 1
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ryankk
acids
bases and indicators
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4
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what is acid?
asked
Sep 24, 2021
in
Chemistry Form 1
by
Robertbengat
acids
bases and indicators
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votes
8
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Why are most apparatus made of glass?
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Sep 16, 2021
in
Chemistry Form 1
by
bintyseyyid
introduction to chemistry
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1
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Write an equation to show the effect of heat on:
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Aug 30, 2021
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Chemistry Form 1
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anony mous
chemical families patterns in properties
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