What is the goal when balancing equations? What scientific idea tells us that is the goal?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater