A neutral solution is a type of solution that has a pH level of 7. It's neither acidic nor basic.
A type of solution that has more H+ ions than OH- ions and thus has a pH less than 7.
A type of solution that has more OH- ions than H+ ions and thus has a pH greater than 7.
pH Scale: The measure used to determine the acidity or alkalinity/basicity of an aqueous solution.