On further heating,they become white solids again,before they decompose.
this is an experiment on heating the nitartes and carbonates of the s-block element.
Li2CO3, MgCO3, CaCO3, SrCO3, BaCO3, LiNO3, NaNO3, KNO3, Mg(NO3)2, Ca(NO3)2, Sr(NO3)2, Ba(NO3)2
2007-07-28 20:15:46 · 4 answers · asked by ystan n 1 in Science & Mathematics ➔ Chemistry
Most nitrates tend to decompose on heating to give the metal oxide, brown fumes of nitrogen dioxide, and oxygen.
Netal Nitrates ---Heat--->Metal Oxide(white) + NO2 (gas)...
2007-07-28 20:22:10 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Any Idiot that has a degree in thermo nuclear physics can tell you that nitrates will.......what was your question? I was watching a Star Trek movie and totally lost my train of thought.
2007-07-29 03:23:10 · answer #2 · answered by BudLt 5 · 0⤊ 1⤋
the color of any chemicals is related to the form of bond in that chemical, nitrates and other R-O3 chemicals respond to heat by reforming the bond or breaking some bonds. thus, the color will change.
2007-07-29 03:23:17 · answer #3 · answered by Anonymous · 0⤊ 1⤋
They dissolve in their own water of crystallisation, which then evaporates on further heating, so they re-solidify.
2007-07-29 03:34:22 · answer #4 · answered by Gervald F 7 · 0⤊ 1⤋