In an experiment, a piece of magnesium ribbon was cleaned with steel wool 2.4g of
the clean magnesium ribbon was placed in a crucible and completely burnt in oxygen
After cooling the product weighed 4.0g To remune
a) Explain why it is necessary to clean magnesium ribbon
b) What observation was made in the crucible after burning magnesium ribbon?
c) Why was there an increase in mass?
d) Write an equation for the major chemical reaction which took place in the crucible
e) The product in the crucible was shaken with water and filtered. State and explain the
observation which was made when red and blue litmus paper were dropped into the filtrate
Answers: 2
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In an experiment, a piece of magnesium ribbon was cleaned with steel wool 2.4g of
the clean magnes...
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