Explain what happens when:
(Support your answer with balanced chemical equations)
a) Magnesium ribbon is burnt in air.
b) An iron nail is left in the garden for a number of days.
c) Sulphur dioxide is dissolved in water.
Answers
Answer:
a
When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. ... After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction
b.
The nails in water should both form rust within three weeks, and the vinegar should rust a nail approximately one week later.
c
The reaction of Sulphur dioxide with water leads to the formation of acid called Sulfurous acid. ... When the gas is dissolved in water, it yields an acid called sulfurous acid with chemical formula as shown in the chemical equation: Sulfurous acid is a good reducing agent with molar mass 82.07g/mol
Explanation:
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