What is the reaction #2Mg(s) + O_2(g) -> 2MgO(s)# is an example of what type of reaction?

1 Answer
anor277
Feb 27, 2017

#"A redox reaction.................."#

Explanation:

Magnesium metal is oxidized to magnesium ion:

#Mg(s) rarr Mg^(2+) + 2e^(-)# #(i)#

Oxygen gas is reduced to oxide anion:

#O_2(g) + 4e^(-) rarr 2O^(2-)# #(ii)#

Overall #2xx(i) + (ii)#, #2Mg(s) + O_2(g) rarr 2MgO(s)#

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