To determine the correct subscripts in a chemical formula, take H2O  as an example. H has a charged of positive 1 while O has a charge  of negative 2. To balance out the chaâ¦rges of the two elements, 2 H  cations are needed to balance out O negative 2 cation. This will  result to H2O.
How much area will one gallon of paint cover? Paint coverage is affected by numerous factors: the quality of the paint youâre using, the color youâre covering and the color youâre using. That said, a good rule of thumb is that one gallon of paint will cover between 350 and 400 sq. ft. Planning ahead will help you determine the amount of paint needed for a project.
With that being said paint covers approximately 400-450 square feet of surface per gallon. If the surface is porous expect the coverage area to be less. So therefore 5 gallons of paint should cover 2000-2250 square feet on average (400-450 sq feet multiply by 5 gallons). Hope this helps!