When conducting an experiment to determine Ph level of various household substances, use stickers to keep track of and compare the results. Label solutions according to acidity and Ph levels with the tips in this free video on chemistry experiments

daohuongthon 28-12-2009 30 0

Hydrogen can be used to make soap bubbles that behave slightly different than normal bubbles - they explode.

thanlancon 28-12-2009 9 0

A reaction of small piece of potassium metal with water. The flame you see is actually burning hydrogen given off but is colored pink due to potassium vapor.

vuotnguc 28-12-2009 11 0

A chemical demonstration of the reaction between sodium and water and between potassium and water. Carleton University, Ottawa, Canada.

thaonguyen 28-12-2009 24 0

Phản ứng natri và nước

thienthannho 28-12-2009 29 0

Phản ứng của natri với clo

vusuakhongduong 28-12-2009 21 0

SO2 làm mất màu dd KMnO4

DongPhuongChiChau 28-12-2009 86 0

Sự háo nước của axit sunfuric đặc

Hoadai 28-12-2009 106 0

pu hoa hoc H2SO4 voi duong tao thanh than

motngaykhongcoem 28-12-2009 95 0

Phản ứng Cu tác dụng HSO4 đặc

angola 28-12-2009 56 0