Question

Is magnesium reactive?

Answer 1

yes magnesium is reactive

Answer 2

yes!



Water: When exposed to steam, magnesium changes from magnesium to magnesium oxide and hydrogen.

Mg(s)+H2O(g)→MgO(s)+H2(g)(1)(1)Mg(s)+H2O(g)→MgO(s)+H2(g)

When exposed to cold water, the reaction is a bit different. The reaction does not stop because the magnesium hydroxide gets insoluble in water.

Mg(s)+2H2O(g)→Mg(OH)2(s)+H2(g)(2)(2)Mg(s)+2H2O(g)→Mg(OH)2(s)+H2(g)

Oxygen: When exposed to oxygen, magnesium turns into magnesium oxide.

2Mg(s)+O2(g)→2MgO(s)(3)(3)2Mg(s)+O2(g)→2MgO(s)

Hydrogen: When exposed to hydrogen, magnesium turns into magnesium hydride.

Mg(s)+H2(g)→MgH2(s)(4)(4)Mg(s)+H2(g)→MgH2(s)

Nitrogen: When reacted with nitrogen, magnesium turns into magnesium nitride.

3Mg(s)+N2(g)→Mg3N2(s)(5)(5)3Mg(s)+N2(g)→Mg3N2(s)

Halogens: When reacted with a halogen, magnesium is very reactive. An example will be with chloride. When reacted with chloride, the product is magnesium(II) chloride.

Mg(s)+Cl2(g)→MgCl2(s)(6)(6)Mg(s)+Cl2(g)→MgCl2(s)

Acids: When reacted with acids, magnesium dissolves and forms solutions that have both the Mg(II) ion and hydrogen gas.

Mg(s)+2HCl(aq)→Mg2