What is true of a basic solution at room temperature? it has a ph value below 7. it has a greater concentration of hydroxide compared to hydronium ions. it has a distinct sour taste but an odorless gas. it can be used as a conductor in car batteries?

The true statement about basic solution at room temperature is that it has a greater concentration of hydroxide compared to hydronium ions.
Basic solutions have always pH greater than 7.
Basic solutions have bitter and caustic taste.
Basic solutions are not used as conductors in car batteries, acidic electrolytes are used in car batteries.

The correct answer is "atomic weight".

Answer two atoms of oxygen;