Hello! Please help with this redox reactions question! The reaction is:
4Al (s) + 3O2 (aq) --> 2Al2O3

Then, I have to break the reaction down into its ions, which is where I have trouble. After that, I have to identify what is being oxidized and reduces but I feel like I can do that once I figure out what the charge of all the elements are in their ions, which is what I have trouble with. Thank you for your help!

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

can you list the answers so i can answer

the ratio of the conjugate base to the acid required to attain the desired ph.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.