2 is the number as you need to balance the equation
<span>Every organism needs the energy to carry out a number of different processes, such as growth and reproduction. The energy is necessary for different metabolic processes and reactions inside the cells. Plants do not move around, so they don't need energy for movement, but they need the energy to develop, to grow, to produce food, to reproduce, and many other processes.</span>
GaBr3
Gallium=Ga
Bromine= Br
Bromide=Br3
One example could be scanners linked to a networked database. Those little hand scanners that you see at a Publix or Wal-Mart report back to series of systems that allow stores to track inventory across the entire business allowing them to anticipate when they should order more of one item or see what has been selling particularly well -- or not. Consumers don't see any of that when they buy their Count Chocula, but the database systems do and those can be extremely complex. I hope this helps you out!! have a wonerful day!!
Have you tried the app chem balancer I found it a great help when working on chemistry