Balance the following and label what type of reaction is taking place:   c5h9o + o2? co2 + h2o

The given reaction is C₅H₉O + O₂ → CO₂ + H₂O

On balancing the equation we get:  

20 C₅H₉O + 90 O₂ → 100 CO₂ + 9 H₂O

This is a single replacement type of reaction. A single replacement reaction, also called a single-displacement reaction, refers to a kind of chemical reaction where an element reacts with a compound and occupies the place of another element in that compound.  

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

im pretty sure its b