Litmus Testing
2.4 هزار بار بازدید -
4 سال پیش
-
This is a quick demonstration
This is a quick demonstration of litmus tests carried out on various household substances, as an alternative to actually doing the tests in class, leading to operational definitions of acids and bases.
4 سال پیش
در تاریخ 1399/02/12 منتشر شده
است.
2,423
بـار بازدید شده