GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Balance the following: ____ Al + ____ O2
|
|
2, 3, 4
|
|
|
4, 3, 2
|
|
|
1, 1, 2
|
|
|
2, 1, 1
|
Explanation:
Detailed explanation-1: -Al(s) + O2(g) → Al2O3(s) The above reaction is balanced so that its coefficients are the lowest whole-number.
Detailed explanation-2: -Finally we have a balanced equation: 4Al + 3O2–> 2Al2O3 . There 4 aluminums on each side and 6 oxygens on each side!
Detailed explanation-3: -Here, there are two reactants (Al and O2) combining to form one product, Al2O3, so this is a synthesis reaction.
There is 1 question to complete.