Question

H2+Cl2–> 2HCl
How many moles of Cl2 are needed to react with 3 miles of H2?

Answer 1

Hey there!

3 moles of Cl₂ are needed to react with 3 moles of H₂.

2 atoms of H are reacting with 2 atoms of Cl, the product is made up of 2 atoms of H and 2 atoms of Cl.

So they are reacting in a 1 to 1 ratio, and have the same number of moles.

Hope this helps!