Answer:
U gotta check ur book for that or Google maybe..
N2O4 ↔ 2NO2
The following system react as below when increase in pressure occurs
The equilibrium will shift towards the left (more N2O4 is produced)
<em><u>Explanation</u></em>
When pressure increases the equilibrium shift toward the side of reaction with fewer moles of gas.
In the reaction of N2O4 ↔ 2 NO2 there is only 1 moles of N2O4 and 2 moles of NO2.
Therefore increase in pressure led to shift of equilibrium towards the left. ( more N2O4 is produced)
A certain dinosaur was a planteater but thats all i know i hope it helps
Answer:
Light years are the only practical unit for measuring the distance of space
Explanation:
Practical... aka logical.
Answer: Number of molecules of hydrogen gas 
Explanation:

Number of moles of sodium =
According to reaction , 2 moles of sodium produces 1 mole of hydrogen gas , then 2.11 mol of sodium will=
of hydrogen gas that is 1.05 moles of hydrogen gas.
Number of molecules =
moles of substance
Moles of hydrogen gas formed = 1.05 moles
Number of molecules of hydrogen gas =
moles of hydrogen gas
Number of molecules of hydrogen gas 