Calcium has a higher melting point compared to sodium therefore during cooling calcium
crystallizes first leaving sodium which is tapped.
gideon1 answered the question on September 28, 2017 at 05:28
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List the main uses of Sulphur
(Solved)
List the main uses of Sulphur
Date posted:
September 27, 2017
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Answers (1)
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List and explain the physical properties of Sulphur
(Solved)
List and explain the physical properties of Sulphur
Date posted:
September 27, 2017
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Answers (1)
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Name the two allotropes of sulphur
(Solved)
Name the two allotropes of sulphur
Date posted:
September 26, 2017
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Answers (1)
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State three uses of hydrogen nitrate
(Solved)
State three uses of hydrogen nitrate
Date posted:
September 26, 2017
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Answers (1)
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Define the term catenation?
(Solved)
Define the term catenation?
Date posted:
September 26, 2017
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Answers (1)
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Both graphite and molten sodium chloride conduct electricity,state how each of the substances conduct electricity?
(Solved)
Both graphite and molten sodium chloride conduct electricity,state how each of the substances conduct electricity?
Date posted:
September 26, 2017
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Answers (1)
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List five substances that undergo sublimation?
(Solved)
List five substances that undergo sublimation?
Date posted:
September 26, 2017
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Answers (1)
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Define the term sublimation
(Solved)
Define the term sublimation
Date posted:
September 26, 2017
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Answers (1)
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Define the term chromatography?
(Solved)
Define the term chromatography?
Date posted:
September 26, 2017
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Answers (1)
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Name three methods used in separation of mixtures?
(Solved)
Name three methods used in separation of mixtures?
Date posted:
September 26, 2017
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Answers (1)
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What is a conductor?
(Solved)
What is a conductor?
Date posted:
September 26, 2017
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Answers (1)
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Define the term flame?
(Solved)
Define the term flame?
Date posted:
September 26, 2017
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Answers (1)
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An experiment was carried out to investigate the rate of reaction shown below
Sucrose ?Fructose + Glucose ...
(Solved)
An experiment was carried out to investigate the rate of reaction shown below
Sucrose →Fructose + Glucose
For the products fructose and glucose to be formed, it was found that substance K was to be added and the temperature maintained at 370C. When another substance L was added, the reaction slowed down and eventually stopped
a) Suggest the identify of substances K and L
b) Other than temperature state three ways by which the rate of reaction could be increased
c) Explain how substance L slowed down the reaction
Date posted:
September 25, 2017
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Answers (1)
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Write an equation for the reaction that takes place when equal volumes of chlorine gas react with propane
(Solved)
Write an equation for the reaction that takes place when equal volumes of chlorine gas react with propane
Date posted:
September 25, 2017
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Answers (1)
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Gas Q takes 100 seconds to diffuse through a porous pot. Gas Q has a relative molecular mass of 34. Determine how long it will...
(Solved)
Gas Q takes 100 seconds to diffuse through a porous pot. Gas Q has a relative molecular mass of 34. Determine how long it will take sulphur (IV) oxide gas to diffuse under the same condition? (S = 32, O = 16,)
Date posted:
September 25, 2017
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Answers (1)
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What is meant by hard water?
(Solved)
What is meant by hard water?
Date posted:
September 25, 2017
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Answers (1)
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Briefly describe what happens when solids are heated
(Solved)
Briefly describe what happens when solids are heated
Date posted:
September 24, 2017
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Answers (1)
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Explain the Kinetic Particle Theory
(Solved)
Explain the Kinetic Particle Theory
Date posted:
September 24, 2017
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Answers (1)
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State the uses of water in frasch process
(Solved)
State uses of water in frasch process
Date posted:
September 24, 2017
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Answers (1)
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Why is a glass container for sampling and storage inappropriate
(Solved)
Why is a glass container for sampling and storage inappropriate
Date posted:
September 20, 2017
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