File 1
pdf Please login to download this file.
This resource illustrates where various items fall on the pH scale. A pH of 7 is neutral. A pH lower than 7 is acidic and a pH higher than 7 is basic.
About this resource
Resource type
ليکندرو
خور تهندرو
چُاپ تهيلُا حق
CC BY / CC BY-SA
