Respuesta :

The B stands for Boron which is 5 on the periodic table.
The O stands for Oxygen which is 8 on the periodic table.

There is 1 Boron,        It's only 1 because there is only on B which doesn't have coefficent 
There is 2 Oxygen,     The 2 is from the 2 next to the O
RELAXING NOICE
Relax