Here is your answer 
C3H8 + O2-----> CO2 + H2O
Balancing C atoms
C3H8 + O2------> 3CO2 + H2O
Balancing H atoms
C3H8 + O2------> 3CO2 + 4H2O
Balancing O atoms 
C3H8 +

O2-------> 

CO2 + 

H2O 
Hence the equation is balanced.
HOPE IT IS USEFUL
 
        
        
        
The gases that get released form bubbles in the solution
        
                    
             
        
        
        
Answer:
F. Universe
Explanation:
Universe and Galaxies are two different things.
 
        
             
        
        
        
Answer:
A
Explanation:
Germanium and Carbon are in the same 14th group.
 
        
                    
             
        
        
        
Answer: The steepness of a ramp affects it by making it easier or harder.
Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.