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Answer the following questions:
Answer variants:
Each metal reacts with their salt solution more reactive metal reacts less, less will be most.
Because eyes can be destroyed by the dazzling light.
Magnesium is a highly reactive element that combines with oxygen to form magnesium oxide that does not burn.
The total electron content of \(Mg^2{^+}\) and \(O^2{^-}\) is \(40\).
1. Why should magnesium ribbon be cleaned before burning it in air?
2. Why is it suggested to wear dark coloured goggles while watching the burning of magnesium ribbon in air?
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