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2C2H6+7O2---> 4CO2+6 H2O

The scattering of light waves as they pass through a colloidal material is called the Tyndall effect. It is also true for sound waves and is caused by the movement of the particles.

synthesis or composition: 4Na+O2---> 2Na2O decomposition: 2Na2O--->4 Na + O2 In your fake example you list 2 L's. If both had L, they would not combine. 4Fe+ 3O2--->2 Fe2O3, formation of rust, iron oxide CO2+ H2O---> H2CO3, carbonic acid synthesis H2CO3---> CO2+ H2O, decomposition of...