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To keep away air or oxygen, this would react with it.
When phosphorus is exposed to air, it smoulders to form two oxides:
Phosphorus (III) oxide and phosphorus (V) oxide
johnmulu answered the question on February 2, 2017 at 10:08
- Explain why anhydrous aluminium chloride is fairly soluble in organic solvent while anhydrous magnesium chloride is insoluble(Solved)
Explain why anhydrous aluminium chloride is fairly soluble in organic solvent while anhydrous magnesium chloride is insoluble.
Date posted: February 2, 2017. Answers (1)
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A crystal of iodine, heated gently in a test gave off a purple vapour.
a) Write the formula of the substance responsible for the purple vapour
b) What type of bond is broken when the iodine crystal is heated gently
c) state one use of iodine
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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a) what are halogens
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Date posted: February 2, 2017. Answers (2)
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Distinguish between a covalent bond and co-ordinate bond.
Date posted: February 2, 2017. Answers (1)
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The atomic numbers of elements C and D are 19 and 9 respectively. State and explain the electrical conductivity of the compound CD in
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b) Aqueous state
Date posted: February 2, 2017. Answers (1)
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With reference to iodine, distinguish between covalent bonds and Van Der Waals forces.
Date posted: February 2, 2017. Answers (1)
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Oxygen and sulphur belong to group (VI) of the periodic table. Explain why there is a big difference in their melting points (melting points of oxygen is -216oC) while that of sulphur is 44oC
Date posted: February 2, 2017. Answers (1)
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The melting point of phosphorus trichloride is - 91oC while that of magnesium chloride is 715oC. In terms of structure and bonding, explain the difference in their melting points
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Give the name of the product formed when magnesium reacts with phosphorus.
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)