Some chemical reactions change temperature, change color, produce a gas, or make a solid from two liquids. Try this reaction and see what it does! Pour 1 tablespoon of hydrogen peroxide into a cup.

It's a regrettable reality that there is never time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we ...

Chemical equations model the changes that happen in chemical reactions. Avogadro constant and moles - OCR Gateway The mole is the unit for amount of substance. The number of particles in a ...

Fireworks, explosives and fuels, on the other hand, all involve very fast and extremely exothermic chemical reactions. The first 'reaction' that we tried for our hand warmer involved dissolving ...

Bubbles – Many chemical reactions you see in the science lab make a chemical which is a gas, so you see bubbles. A colour change – If the new chemicals are a different colour from the original ...

Zhang Xin from the Hefei Institutes of Physical Science of the Chinese Academy ... The study is published in the journal ... A chemical reaction is a process that always results in the ...