Question

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Answer 1

1) We must remember that when iron reacts with oxygen and water, iron oxide is formed. This iron oxide is commonly known as rust and the process is known as rusting. The equation is given below:

Fe+O2+H2O→Fe2O3.

2) Magnesium. Magnesium burns in steam to produce white magnesium oxide and hydrogen gas. Very clean magnesium ribbon has a mild reaction with cold water, given below. After several minutes, hydrogen gas bubbles form on its surface, and the coil of magnesium ribbon usually floats to the surface

3) When sulphur dioxide is dissolved in water it forms sulphurous acid.

Answer 2

Answer:

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