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The following unbalanced reaction occurs in basic media: Fe2+ + Cr2O72- Fe3+ + Cr3+
The coefficient for water in the balanced equation is __________, and water appears on the __________ side of the equation.
Stratospheric Ozone
A layer of ozone molecules located in the Earth's stratosphere, protecting life by absorbing most of the sun's harmful ultraviolet radiation.
UVB
Ultraviolet B light, a component of sunlight with wavelengths between 280-315 nm, known for its role in vitamin D synthesis and skin tanning.
CFCs
Chlorofluorocarbons, compounds that were widely used as refrigerants and aerosol propellants but are harmful to the ozone layer.
Sulfur Oxides
Compounds formed from the combination of sulfur and oxygen, often produced by burning fossil fuels, and are significant contributors to pollution and acid rain.
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