Question

Magnesium ribon burns in air and change to white substance, i.e. magnesium oxide. When magnesium oxide dissolves in water, what type of change take place (chemical or physical change)? Give reasons in support of your answer. Express the change in the form of equation. ​

Answer 1

Answer:

ok here is your answer :-

Explanation:

firstly :-

Mg + O2 -------> 2MgO

by reaction of water :-

MgO + H2O -------- > Mg(Oh)2 + h2 (g)

So here Mg(oh)2 is produced as a form of precipitate along with the evolution of hydrogen gas .

hope it will help

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Answer 2

Answer:

you are a ghost like me