How many moles of oxygen is required to produce 7.8 moles of water?

1) this is the structure in the cell nucleus that houses a cell's genetic information

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.