Answer:
60
Explanation:
5x10=50-5 = 45 2x10-5= 15 45+15=60
Answer: <span>Chlorine is losing electrons and being oxidized.
Justification:
1) Chlorine is losing electrons
As you se the side of the products shwo two electrons, that means that those electons were lost by the reactants. Given that the only reactant is chlorine, it is releasing or losing those electrons.
2) Chlorine is being oxidized.
The substance that loses electrons and, hence, increases its oxidation number, is the substance being oxidized.
In this case Cl (-) in the side of the reactants has oxidation state (1-), while Cl2 in the side of the products has oxidation state 0. This shows that the oxidation state of chlorine increased, meaning that it is being oxidized.
</span>
Just try to find how you will get the reaction by adding the other reactions. Reverse the second eq as O is in reactant side and half it..
Now in the final reaction there is neither ozone nor oxygen so now you have oxygen on the products side after adding reversed
2 and 3, O ->1/2 O2
adding this to the third eq you get,
NO+O +O3 -> NO2 +3/2 O2
Now you need to remove O3 and O2 using the first equation,
So reverse the first one,half it and add, 3/2O2-> O3 adding it removes O3 and O2 you get the requires equation,
NO + O->NO2 you can do the calculation bit yourself when you add reactions Enthalpy is also added by Hess law so yeah that part should be pretty simple.
2 C5H12O + 15 O2 = 10 CO2 + 12 H2O
Hope this helped :)