Why would a mixture of gases in a 5 L balloon react faster than a mixture of the same gases in a 10 L balloon?

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Why does his teacher ask him to balance the equation by including the correct coefficient