The common negative ions, carbonate (CO32-), sulfate(VI) (SO42-) and the halides (Cl–, Br– and I–) can be simply tested for in test tube reactions. The method described here uses a more dilute ammo.. more

words matched: effervescence

The additional negative ions test tube reactions for nitrate(III), nitrate(V), sulfate(IV), phosphate and carboxylates (methanoate and ethanoate).

words matched: effervescence

Oscillating reactions provide a fascinating insight into reaction kinetics. They provide unusual observations and a visual hook for discussing rates of reaction and auto-catalysis. The Briggs-Rauscher.. more

words matched: effervescence

Brief risk assessment guidance and experimental notes for a range of practical activities involving sodium peroxide and potassium superoxide (Hazcard 94).

words matched: effervescence