The first 'reaction' that we tried for our hand warmer involved dissolving potassium carbonate (K 2 CO 3) in water. Potassium carbonate is one of the chemicals left behind in the ashes of burnt wood.

Sodium carbonate may cause skin and serious eye irritation ... Explain that “soap scum” is a common example of a precipitate that forms when certain minerals in water react with soap molecules. Tell ...

Spreading crushed rocks on fields can absorb CO2 from the air – now chemists have devised a way to turbocharge this process ...

Stanford University chemists have developed a practical, low-cost way to permanently remove atmospheric carbon dioxide, the ...

Stanford researchers developed a scalable method to permanently remove CO2 from the atmosphere using heat-activated minerals.

Metals, bases, certain metal hydroxides and certain metal carbonates, are insoluble in water ... that the reaction stops fizzing. You filter the mixture to remove the excess base/carbonate ...

Editor Lab results on drinking water samples taken in Savage show a chemical reaction is to blame for the residue problems residents reported after the city started buying ...

Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

Similarly, when calcium carbonate reacts with dilute hydrochloric acid, it produces carbon dioxide gas. We can measure the rate of the reaction by ... sodium chloride, water, sulfur dioxide ...