2011). It is clear therefore that some subducted carbonate can reach the lower mantle. The next question we set out to answer was what happens to this material in the lower mantle? To answer that ...

If a compound is heated it will break down to two or more substances and these can be elements or compounds. So, if we have calcium carbonate and we heat it, it breaks down to produce calcium ...

Potassium carbonate is one of the chemicals left behind ... bonds are broken or formed as it takes place. But it generates heat, so can be described as exothermic. Although aqueous solutions ...