What basically your question is can you tell
        
             
        
        
        
Answer:
Only one seven carbon hydrocarbon was produced.
Explanation:
- Alkynes are reduced completely in presence of  to produce alkanes. to produce alkanes.
- Hydrogenation in presence of Pt is a simple nucleophilic addition process where  molecule adds onto an unsaturated bond. molecule adds onto an unsaturated bond.
- Hept-1-yne, hept-2-yne and hept-3-yne are constitutionally isomeric to each other. Hence, after complete reduction, all three alkynes produced heptane as only product.
- So, only one seven carbon hydrocarbon was produced.
 
        
             
        
        
        
Answer:
709 g  
Step-by-step explanation:
a) Balanced equation
Normally, we would need a balanced chemical equation.
However, we can get by with a partial equation, as log as carbon atoms are balanced.
We know we will need an equation with masses and molar masses, so let’s <em>gather all the information</em> in one place.  
M_r:    30.07          236.74
            C₂H₆ + … ⟶ C₂Cl₆ + …  
m/g:    90.0
 (i) Calculate the moles of C₂H₆
n = 90.0 g C₂H₆  × (1 mol C₂H₆ /30.07 g C₂H₆)
   = 2.993 mol C₂H₆
(ii) Calculate the moles of C₂Cl₆
The molar ratio is (1 mol C₂Cl₆/1 mol C₂H₆)
n = 2.993 mol C₂H₆ × (1 mol C₂Cl₆/1 mol C₂H₆)
   = 2.993 mol C₂Cl₆
(iii) Calculate the mass of C₂Cl₆
m = 2.993 mol C₂Cl₆ × (236.74 g C₂Cl₆/1 mol C₂Cl₆)
m = 709 g C₂Cl₆
The reaction produces 709 g C₂Cl₆.
 
        
             
        
        
        
In the summer, in the southern hemisphere. when it is summer is the northern, it is winter in the southern. all year along, the most sun hits the equator, but when it is winter in the northern hemisphere (thats when Alaska goes dark because of no sun) there is summer in the southern Hemusphere such as continents like south america, india, africa, and places like that :)
        
             
        
        
        
Answer:
8.5 moles of Al₂O₃ will formed
Explanation:
Given data:
Number of moles of Al = 17 mol
Number of moles of Al₂O₃ formed = ?
Solution:
Chemical equation:
4Al  +  3O₂     →     2Al₂O₃
Now we will compare the moles of Al₂O₃  with Al.
                   Al            :            Al₂O₃      
                    4            :              2
                    17           :            2/4×17 = 8.5 mol
8.5 moles of Al₂O₃ will formed.