Chemistry 7.5 - 7.8

[@hanad5574]

Thank u so much like ur making it easier for everyone allah ywaf2ak

[@user778.6]

“Ya 7abibi Adam wati sotak” is so real

[@3krtz876]

فديتك أنا 😘

[@pancake4313]

thank you

[@khaledebaid7510]

Do u k how much % is the written in chem?