Question

Why should a magnesium ribbon be cleaned before burning in air?
Write the balanced equation for the following chemical reactions.
(1) Hydrogen + Chlorine → Hydrogen chloride
(ii) Barium chloride + Aluminium sulphate – Barium sulphate +
Aluminium chloride
(iii) Sodium + Water → Sodium hydroxide + Hydrogen​

Answer 1

Answer:

I) magnesium ribbon should be cleaned before burning in air to remove the protective layer of magnesium oxide

Blanched chemical equations;

i) H2+Cl2 - (gives) 2HCl

ii). 3BaCl2 + Al2(SO4)3 - 3BaSo4 + 2AlCl3

iii). 2Na + 2H20 - 2NaOH + H2

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Answer 2

Answer:

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Explanation:

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