I *think* through weathering and erosion. Hope this helped
Answer: There are 3 unpaired electrons on aluminium in aluminium oxide.
Explanation:
Chemical formula of aluminium oxide is 
.
The atomic number of aluminium is 13 and its electronic configuration is 
. In order to complete its octet, aluminium will lose or donate 3 electrons to the oxygen atom as it has 3 electrons in excess.
Thus, there are three unpaired electrons on one aluminium atom.
Since, there are two aluminium atoms in , so, there will be in total 6 unpaired electrons on two aluminium atoms. Whereas each oxygen atom has deficiency of 2 electrons so, each aluminium atom will donate its excess of electrons to each oxygen atom.
Answer:
4.34atm
Explanation:
The following data were obtained from the question:
P1 = 3.50 atm
T1 = 24°C = 24 +273 = 297K
T2 = 95°C = 368K
P2 =?
Using P1 /T1 = P2 /T2, we can obtain the new pressure as follows:
P1 /T1 = P2 /T2
3.5 / 297 = P2 / 368
Cross multiply to express in linear form:
297 x P2 = 3.5 x 368
Divide both side by the 297
P2 = (3.5 x 368) /297
P2 = 4.34atm
Therefore, the gas pressure in the container at 95°C will be 4.34atm
