Home Up Decomposition Reactions Combination Reactions Single Replacement Reactions Double Displacement Reactions Miscellaneous Reactions Practice Answers (Ex. 11)



Combination Reactions

The second reaction we considered in this lesson  was the combination of magnesium and oxygen to form the compound magnesium oxide which has the formula MgO:

Mg + O2 rtarrow.gif (850 bytes) MgO

Notice that the elements are coming together in a combination reaction.

The reaction of hydrogen and oxygen to form water illustrates that combination reactions are just the opposite of decomposition reactions.

H2 + O2 rtarrow.gif (850 bytes) H2O

It is not necessary that the reactants be elements. It is possible for compounds to combine with one another or with elements in combination reactions.

C6H12 + Br2 rtarrow.gif (850 bytes) C6H12Br2


Again, these equations are not balanced and you should take a moment to balance them.


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E-mail instructor: Eden Francis

Clackamas Community College
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