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Recent questions in Chemistry Form 1
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1
answer
State the types of change that take place in each of the following situations
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
simple classification of substances
temporary and permanent changes
0
votes
1
answer
What is rust?
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
air and combustion
composition of air
0
votes
1
answer
Briefly outline how you would obtain ethanol from a mixture of ethanol and water.
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
simple classification of substances
separation of mixtures
0
votes
1
answer
The diagram shows PH values for several substances.
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
acids bases and indicators
0
votes
1
answer
The graph below shows a curve obtained when water at 20℃ was heated for 15 mins.
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
simple classification of substances
0
votes
1
answer
The diagram below represents a paper chromatograph for three brands of juices suspected to contain banned food colourings
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
simple classification of substances
0
votes
1
answer
The figure shows a set-up by a form three student to prepare a certain gas
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
water and hydrogen
0
votes
1
answer
Name another gas which is used with oxygen in welding
asked
Aug 4, 2021
in
Chemistry Form 1
by
anony mous
air and combustion
oxygen
0
votes
1
answer
I want to know the different between alchemist and chemistry
asked
Aug 2, 2021
in
Chemistry Form 1
by
Pendomajani
0
votes
1
answer
State the uses of oxygen
asked
Jul 28, 2021
in
Chemistry Form 1
by
davidkariukikinyanjui
air and combustion
0
votes
1
answer
The Diagram below is set-up for the laboratory preparation of oxygen gas.
asked
Jul 27, 2021
in
Chemistry Form 1
by
anony mous
air and combustion
oxygen preparation
0
votes
1
answer
The diagrams below represent two iron nails with some parts covered tightly with zinc and tin respectively. What observations would be made at the exposed points R and Z if the wrapped nails are left in the open for several days? Explain.
asked
Jul 27, 2021
in
Chemistry Form 1
by
anony mous
air and combustion
rusting
0
votes
1
answer
Fractional distillation of liquid air is usually used to separate various gaseous mixtures in air. Explain how to
asked
Jul 27, 2021
in
Chemistry Form 1
by
anony mous
classification of substances
fractional distillation
0
votes
1
answer
Describe how burning can distinguish CH2CH2 from CH3CH3
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
organic chemistry
0
votes
1
answer
Air was passed through several reagents as shown below
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
air and combustion
0
votes
1
answer
The diagram below shows the relationship between the physical states of matter.
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
classification of substances
states of matter
0
votes
1
answer
The curves below represent the variation of temperature with time when pure and impure samples of a solid were heated separately.
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
classification of substances
0
votes
1
answer
The structure of two molecules of water can be represented as shown below.
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
water and hydrogen
0
votes
1
answer
Give two applications of chromatography?
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
classification of substances
chromatography
0
votes
1
answer
What is paper chromatography?
asked
Jul 27, 2021
in
Chemistry Form 1
by
anonymous
classification of substances
chromatography
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