Limestone is mostly made up of the mineral calcium carbonate (CaCO3).This is not very soluble,so rocks don't dissolve very quickly.But if you add an acid,you add hydrogen ions (H+),which will react ...

Scientists have identified 14 of the 20 amino acids used by terrestrial life ... reinforces the idea of an environment rich in chemical reactions. These conditions would have allowed the formation of ...

Kentucky lawmakers hope to follow Tennessee as the second state to ban what they call “geoengineering” — the theoretical concept to counter climate change that some baselessly claim is already ...

Scientists at Yale and in Singapore have devised what may be the ultimate acid test—a comprehensive model for estimating the ...

A new study explores how complex chemical mixtures change under shifting environmental conditions, shedding light on the ...

Newborns with heart complications can rely on their newly developed immune systems to regenerate cardiac tissues, but adults aren't so lucky. After a heart attack, most adults struggle to regenerate ...

Soil incubation experiments revealed a comprehensive increase in CO2 release by drying-rewetting cycles (DWCs) among Japanese forests and pastureland soils, suggesting a significant contribution of ...

A change is called irreversible if it cannot be changed back again. Many chemical reactions are irreversible. In a chemical reaction, new materials are always formed. Sometimes these new materials ...

pH is a measure of how acidic or alkaline a solution is. The diagram below shows what happens to an enzyme when denaturation occurs. Each enzyme has an optimum pH but it also has a working range ...

Sarah Vine and Andrew Pierce bring their own no-holds-barred opinions, insights and reaction (clue is in the title) to the biggest stories of the week. New episodes every Wednesday, wherever you ...

Equilibria and kinetics in water-mineral-gas systems are covered, with special emphasis on CO2 - carbonate reactions, mineral weathering, redox-reactions, ion exchange, sorption, and pollution of ...