At STP, or standard temperature and pressure, 1 mol of any gas will take up 22.4 liters of space. Assuming STP, 4.5 moles of H2 will take up 100.8L.
If more reactant is added, the equation will shift to the right in order to make more product (which will increase the products)
It always shift to the direction where balance out the reaction
here
<span>It shifts in the exothermic direction.</span>
Answer:
a new substance is formed, if heat is formed, color change, the evolution of gas, and bubbles or fizzing