I really suck at chemistry so please help me out

2Al2O3 --> 4Al + 3O2

Explanation:

Ok so balancing equations means that there is an equal amount of atoms on both sides.

So let's list how much there is on each side

Reactants:

Al-2

O-3

Products:

Al-1

O-2

First of all, oxygen has 2 on the products side but 3 on the reactants side. If you add a 2 to Al2O3 and a 3 to O2, they will have the same amount.

Al-4

O-6

Al-1

O-6

Ok now we need the Al to be balanced. This can be done by putting a 4 in front of Al.

Al-4

O-6

Al-4

O-6

It looks like a lot of work but over time you should be able to just look at it and know what's missing!!

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.