Question

What happen when magnesium ribbon burns?

Answer 1

Question:

What happens when magnesium ribbon burns?

Answer :

When magnesium ribbon burns it forms a white coloured ash which is magnesium oxide . Magnesium burns with a white intense light and gets oxidised.

Equation of the above reaction is

2Mg + O2 ----> 2MgO

Hope it helps !

Answer 2

$\bf\green{Answer:-}$

When we burn magnesium ribbon in presence of oxygen then it produces a brilliant white flame and changes into white powder of magnesium oxide.

$\underline\green{\star{\:\textsf{Balanced\:Equation:-}}}$

2Mg+O2====>2MgO

It is an example of Combination Reaction.

Important Points:-

Combination reaction:- A chemical recation, in which two or more substances(reactants) combine to form a new substances(products), is called a combination reaction.

More examples:-

i) Combinaton of hydrogen and oxygen gas yeilds water:-

2H2(g) + O2(g) =======> 2H2O(g)

ii) Combination of nitrogen and hydrogen gas yeilds ammonia gas:-

N2(g) + 3H2(g)======> 2NH3(g)