The value of 7 is neutral, acids have pH values less than 7 and bases have pH values higher than 7.
The ph scale measures acids and bases and has 7 as a neutral value.
The ph scale measures acids<>and<>bases$$$The ph scale measures acids<>and bases and has<>7$$$The ph scale measures acids<>and bases and has 7 as<>a neutral value$$$bases<>and has<>7$$$bases<>and has 7 as<>a neutral value$$$7<>as<>a neutral value