ETILEN tác dụng dung dịch thuốc tím

soncunglin 28-12-2009 100 0

ETILEN cháy với Oxy

bicbytran 28-12-2009 54 0

Phản ứng ETILEN + BROM

xacchet 28-12-2009 75 0

Thermal decomposition of sugar, ammonium dichromate and ammonium trichromate.

heoleocay 28-12-2009 20 0

When performing a chemistry experiment to determine Ph level of acids and bases in household substances, divide substances into groups based on the colors brought out by the solution. Label solutions according to acidity and Ph levels with the tips

daohuongthon 28-12-2009 28 0

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