A mixture of hydrogen and air explodes with a pop sound.
A jet of pure hydrogen burns with light blue flame.
Hydrogen reduces metallic oxides to form water.
Hydrogen reacts with halogens to form halides.
It form hydrides with water and sulphur.
Hydrogen is a neutral gas whereby it has no effects to both red and blue litmus papers.
Jonmhumble answered the question on February 17, 2018 at 04:39
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What are the sources of heat in laboratory?
(Solved)
What are the sources of heat in laboratory?
Date posted:
January 8, 2018
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Answers (1)
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A hydrated salt has the following composition by mass. Iron 20.2%, Oxygen 23.0%, Sulphur 11.5%, Water 45.3%. Its relative formula mass is 278. determine the...
(Solved)
A hydrated salt has the following composition by mass. Iron 20.2%, Oxygen 23.0%, Sulphur 11.5%, Water 45.3%. Its relative formula mass is 278. Determine the formula of hydrated salt
Date posted:
December 31, 2017
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Answers (1)
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Which is the best method to separate sodium chloride from a solution of potassium chloride and sodium chloride mixture?
(Solved)
Which is the best method to separate sodium chloride from a solution of potassium chloride and sodium chloride mixture?
Date posted:
December 30, 2017
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Answers (1)
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State and explain what is observed when a burning piece of magnesium is lowered into a gas jar containing dry chlorine gas
(Solved)
State and explain what is observed when a burning piece of magnesium is lowered into a gas jar containing dry chlorine gas
Date posted:
December 26, 2017
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Answers (1)
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Give the observations made when lead (ii)nitrate is heated strongly and write a balanced chemical equations to show the action
(Solved)
Give the observations made when lead (ii)nitrate is heated strongly and write a balanced chemical equations to show the action
Date posted:
December 21, 2017
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Answers (1)
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Carbon and silicon are in the same group of the periodic table. Silicon (iv) oxide melts at 2440°c while solid carbon (iv) oxide sublimes...
(Solved)
Carbon and silicon are in the same group of the periodic table. Silicon (iv) oxide melts at 2440°c while solid carbon (iv) oxide sublimes at -70°c. In terms of structure and bonding, explain this difference.
Date posted:
December 21, 2017
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Answers (1)
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Describe how a double aqueous ammonium ii sulphate can be prepared using the following reagents: aqueous ammonia,dilute sulphuric acid and iron metal.
(Solved)
Describe how a double aqueous ammonium ii sulphate can be prepared using the following reagents: aqueous ammonia, dilute sulphuric acid and iron metal.
Date posted:
December 18, 2017
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Answers (1)
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State and explain the observation that would be made when hydrogen chloride gas is bubbled into a solution of silver nitrate
(Solved)
State and explain the observation that would be made when hydrogen chloride gas is bubbled into a solution of silver nitrate.
Date posted:
December 17, 2017
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Answers (1)
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Between methanol and propanol, which has a higher boiling point?
(Solved)
Between methanol and propanol, which has a higher boiling point?
Date posted:
December 13, 2017
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Answers (1)
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Name any three parts of the Bunsen burner and their functions.
(Solved)
Name any three parts of the Bunsen burner and name their functions
Date posted:
December 3, 2017
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Answers (1)
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Apart from the Bunsen burner, name other sources of heat used in the laboratory.
(Solved)
Apart from the Bunsen burner, name other sources of heat used in the laboratory
Date posted:
December 3, 2017
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Answers (1)
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Give 3 apparatus used for measuring accurate specific volume of liquids.
(Solved)
Give 3 apparatus used for measuring accurate specific volume of liquids.
Date posted:
December 3, 2017
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Answers (1)
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Give the reasons why most laboratory apparatus are made of glass
(Solved)
Give the reasons why most laboratory apparatus are made of glass
Date posted:
December 3, 2017
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Answers (1)
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Name the uses of the following laboratory apparatus. Desiccator, Deflagrating spoon, Tongs and Crucible.
(Solved)
Name the uses of the following laboratory apparatus.
- Desiccator
- Deflagrating spoon
- Tongs
-Crucible.
Date posted:
December 3, 2017
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Answers (1)
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A piece of burning sulphur was lowered into a gas jar filled with oxygen and containing aqueous litmus solution as shown.
(Solved)
A piece of burning sulphur was lowered into a gas jar filled with oxygen and containing aqueous litmus solution as shown.
(a)State two observations made during the experiment.
(b)Write an equation for the burning xof sulphur in air.
Date posted:
November 28, 2017
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Answers (1)
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The diagram below shows some apparatus used in the laboratory
(Solved)
The diagram below shows some apparatus used in the laboratory
Name the apparatus and state their uses.
Date posted:
November 28, 2017
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Answers (1)
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The set up below shows the apparatus used for the preparation of nitrogen (i) oxide
(Solved)
The set up below shows the apparatus used for the preparation of nitrogen (i) oxide
(a)(i)Name solid X
(ii)What precautions is taken when heating solid X
(b)Nitrogen (i) oxide does not burn but a magnesium ribbon continues burning in the gas.Explain
Date posted:
November 27, 2017
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Answers (1)
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Study the table below and answer the questions that follow
(Solved)
Study the table below and answer the questions that follow
(i)Select a substance with a giant metallic structure.Explain
(ii)Substance A and C conduct electricity in molten state at room temperature.What is the difference in
their conductivity?
(iii)Select a substance which is in gaseous state.Explain
Date posted:
November 27, 2017
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Answers (1)
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The table below gives some properties of substances I,II,III and IV.Study it and answer the questions that follows
(Solved)
The table below gives some properties of substances I,II,III and IV.Study it and answer the questions that follows
What type of structure exist in substances?
I............................
II...........................
III..........................
IV...........................
Date posted:
November 24, 2017
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Answers (1)
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Study the reaction scheme below and answer the question that follow
(Solved)
Study the reaction scheme below and answer the question that follow
Name(i)Salt A
(ii)Process B
(iii)Solid C
(iv)Brown gas D
(v)Gas E
(VI)Salt in solution F
(VII)Precipitate G
(viii)complex ion in solution H
Date posted:
November 24, 2017
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Answers (1)