2. The coefficients represent to molar ratios in a balanced equation.
You can pick up any garbage that you see. Talk to people and hear what their ideas are for helping the environmental.
Hydrogen is the only atom that does not have neutron electrons in the first energy level/shell.
( The rapid motion and collisions of molecules ) with the walls of a container causes pressure.
Source; https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/States_of_Matter/Properties_of_Gases/Gas_Pressure
It is 0.5474 but you can put 0.5 hope this helps
