Answer:
We'll have 1 mol Al2O3 and 3 moles H2
Explanation:
Step 1: data given
Numer of moles of aluminium = 2 moles
Number of moles of H2O = 6 moles
Step 2: The balanced equation
2Al + 3H2O → Al2O3 + 3H2
Step 3: Calculate the limiting reactant
For 2 moles Al we need 3 moles H2O to produce 1 mol Al2O3 and 3 moles H2
Aluminium is the limiting reactant. It will completely be consumed (2 moles).
H2O is in excess. There will react 3/2 * 2 = 3 moles
There will remain 6 - 3 = 3 moles
Step 4: Calculate moles products
For 2 moles Al we need 3 moles H2O to produce 1 mol Al2O3 and 3 moles H2
For 2 moles Al we'll have 2/1 = 1 mol Al2O3
For 2 moles Al We'll have 3/2 * 2 = 3 moles H2
We'll have 1 mol Al2O3 and 3 moles H2
Answer:
to understand the human life
Explanation:
hope this helps :)
Answer: The coefficients for the given reaction species are 1, 6, 2, 3.
Explanation:
The given reaction equation is as follows.
![Cr_{2}O^{2-}_{7} + Cl^{-} \rightarrow Cr^{3+} + Cl_{2}](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%20Cl%5E%7B-%7D%20%5Crightarrow%20Cr%5E%7B3%2B%7D%20%2B%20Cl_%7B2%7D)
Now, the two half-reactions can be written as follows.
Reduction half-reaction: ![Cr_{2}O^{2-}_{7} + 3e^{-} \rightarrow Cr^{3+}](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%203e%5E%7B-%7D%20%5Crightarrow%20Cr%5E%7B3%2B%7D)
This will be balanced as follows.
... (1)
Oxidation half-reaction: ![Cl^{-} \rightarrow Cl_{2} + 1e^{-}](https://tex.z-dn.net/?f=Cl%5E%7B-%7D%20%5Crightarrow%20Cl_%7B2%7D%20%2B%201e%5E%7B-%7D)
This will be balanced as follows.
... (2)
Adding both equation (1) and (2) we will get the resulting equation as follows.
![Cr_{2}O^{2-}_{7} + 14H^{+} + 6Cl^{-} \rightarrow 2Cr^{3+} + 3Cl_{2} + 7H_{2}O](https://tex.z-dn.net/?f=Cr_%7B2%7DO%5E%7B2-%7D_%7B7%7D%20%2B%2014H%5E%7B%2B%7D%20%2B%206Cl%5E%7B-%7D%20%5Crightarrow%202Cr%5E%7B3%2B%7D%20%2B%203Cl_%7B2%7D%20%2B%207H_%7B2%7DO)
Thus, we can conclude that coefficients for the given reaction species are 1, 6, 2, 3.
Answer:
I think magniesum is combined with the sulfer which is why its at 3 omegas.
Hope this helps!
Explanation: