Answer:
Combination reaction
Explanation:
N2+H2 = NH3
they combine together to form a product
Answer: Hydrogen molecules will have greatest average speed.
Explanation:
The formula for average speed is :

R = gas constant
T = temperature
M = Molecular Mass
Now putting all the values:



Thus average speed of hydrogen is 8 times the average speed of oxygen. Thus hydrogen molecules will have greatest average speed
Answer:
I think so henterogeneous
<span>No. Salt, like all matter is composed of atoms.</span>