The meaning of 3O2 is 3 oxygen molecules.
The chemical name for 3O2 is oxygen gas.
4Fe + 3O2 --> 2Fe2O3
It is: C2H5OH+3O2 ----> 2CO2+3H2O
The balance equation would be 4Fe + 3O2 ==> 2Fe2O3, so the coefficients are 4, 3, 2.
The balanced chemical equation for the formation of Fe2O3 from Fe and O is: 4Fe + 3O2 -> 2Fe2O3
The chemical name for 3O2 is oxygen gas.
4Fe + 3O2 --> 2Fe2O3
This is a synthesis reaction, and when it's balanced, it looks like this: 4Al + 3O2 --> 2Al2O3
It is: C2H5OH+3O2 ----> 2CO2+3H2O
C2H5OH +3O2 gives 2CO2 +3H2O ...it burns with ablue flame in air
The reaction 2KClO3 --> 2KCl + 3O2 is a decomposition reaction, where a single compound breaks down into two or more simpler substances.
endothermic
4 3o2 146
The balance equation would be 4Fe + 3O2 ==> 2Fe2O3, so the coefficients are 4, 3, 2.
2KClO3 ----> 2KCl + 3O2
...+13o2
2Al2O3 --> 4Al + 3O2