Fe+CuSO4→FeSO4+Cucap F e plus cap C u cap S cap O sub 4 right arrow cap F e cap S cap O sub 4 plus cap C u (Iron displaces Copper because it is more reactive). 4. Double Displacement Reaction
A single reactant breaks down into two or more simpler products. This usually requires energy in the form of heat, light, or electricity. : Caused by heat (e.g.,
: Digestion of food, rusting of iron, and respiration. Representing Reactions: Chemical Equations
C+O2→CO2cap C plus cap O sub 2 right arrow cap C cap O sub 2 2. Decomposition Reaction
Mg+O2→MgOcap M g plus cap O sub 2 right arrow cap M g cap O
The gradual destruction of metals by the action of air, moisture, or chemicals. : The reddish-brown coating on iron. Prevention : Galvanization, painting, or greasing.
: An unbalanced equation that simply shows the reactants and products (e.g.,
