Combination reactions are ones where two different elements chemically combine
to produce a single compound.
•Element A + Element B ® Compound containing A and B
–A metal can combine with a non-metal to form a
compound
•Metal + Nonmetal ® Compound containing metal & nonmetal
–Two non-metals can combine to form a compound.
•Nonmetal A + Nonmetal B ® Compound containing nonmetal A & B
Two metals cannot combine to form compounds however. (They
do mix to give alloys, which is a
mixture and not a compound.)
The physical and chemical properties of the compound are usually different from those of the elements it is made from.