A form three student added sodium carbonate solution to a solution of aluminium chloride in water. A white precipitate was formed. The precipitate soon dissolved liberation a colourless gas.i) What is the white precipitate?ii) Explain why the precipitate dissolves?
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Magnesium and silicon are both in period III of the periodic table. The atomic radius of the magnesium is found to be higher than silicon. Explain this observation.
Date posted: January 16, 2017. Answers (1)
Nitrogen (II) oxide is produced in the internal combustion engines. State and explain how it affects the environment.
Name a pair of suitable reagents that can be used to prepare nitrogen (II) oxide in the laboratory.
State Graham's law.
Name the two flames produced by a Bunsen burner and the conditions under which they are produced.
What factors should be considered when choosing a fuel for cooking?
Date posted: January 14, 2017. Answers (1)