B
Explanation:
I aint sure tho i am sorry
 
        
             
        
        
        
Answer:
CH4 +O2 => CO2 + 2 H2O 
None were in excess 
Explanation:
Equation for the reaction is, 
CH4 + O2 =>CO2 +2 H2O
No of moles of CH4 = (20 /1000)/24 =0.02 /24 = 0.00083
No of moles of O2 =20 /24000 = 0.0083
CH4 : O2 = 1:1
THEREFORE
None of the gases were in excess. 
 
        
             
        
        
        
Answer:
It is an example of chemical reaction because carbon dioxide and water are converted into glucose and oxygen. If that makes any sense.  and it is classified as endothermic because it requires the input of energy in the form of solar energy.
Explanation:
 
        
             
        
        
        
Answer:
agua
Explanation:
por que estamos en la planeta 
 
        
             
        
        
        
<u>Answer:</u> The time taken by jet plane to reach Los Angeles from Chicago is 3.5 hours
<u>Explanation:</u>
Speed is defined as the rate at which an object moves with respect to time.
To calculate the time taken for the given speed, we use the equation:

where,
s = speed of the jet plane = 800 km/hr
d = distance traveled = 2800 km
t = time taken by jet plane = ?
Putting values in above equation, we get:

Hence, the time taken by jet plane to reach Los Angeles from Chicago is 3.5 hours