In the reaction Sn(s) + 2H+(aq) → Sn2+ (aq) + H2(g)
from this reaction, we get that Sn loses from 0 to 2 electrons so it's oxidized So it is the reducing agent.
and H  gains from 0 to 1 electrons so, it's reduced so ∴ it is the oxidizing agent
        
                    
             
        
        
        
it is already balanced
REACTANTS 
Barium sulfide (BaS) + platinum (Ii) fluoride 
PRODUCT
Barium fluoride (BaF2) + Cooperite (PtS)
Hope this answer helps you dear! take care
 
        
             
        
        
        
Answer:
- The answer is the concentration of an NaOH = 1.6 M
 
Explanation:
The most common way to solve this kind of problem is to use the formula  
In your problem,
For NaOH 
C₁ =??     v₁= 78.0 mL = 0.078 L 
For H₂SO₄
C₁ =1.25 M     v₁= 50.0 mL = 0.05 L
but you must note that for the reaction of NaOH with H₂SO₄ 
2 mol of NaOH raect with 1 mol H₂SO₄
So, by applying in above formula 
-  (C₁ * 0.078 L) = (2*  1.25 M * 0.05 L)
 
- C₁ = (2*  1.25 M * 0.05 L) / (0.078 L) = 1.6 M  
 
<u>So, the answer is the concentration of an NaOH = 1.6 M</u>
 
        
             
        
        
        
Two helium nuclei fuse to form beryllium nuclei which is highly unstable and spontaneously decays rapidly.
        
             
        
        
        
Answer:
Relief is typically defined as the difference in height between the high point and the low point on a landscape, in feet or in meters.
Explanation: