Do not attempt to perform this demonstration. The combustion of methane is an example of an exothermic reaction. More energy is released when the bonds in the products are formed than is used to break ...

Temperature, concentration, pressure and the use of catalysts affect reaction rate. Heat energy changes in chemical reactions - Edexcel Exothermic reactions in solution give out energy and the ...

You will complete eight required core practical activities if you are studying GCSE Chemistry ... activities in the Rates of reaction and energy changes section: investigating the effects of ...

Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the nucleus that are different distances away from the nucleus ...

To the Editor: Reliable and fast computation of protein free energy is crucial for protein-structure analysis, structure-based protein design and protein docking. Rigorous treatments based on ...

The film explains the concept of chemical changes, where two or more materials combine to form entirely different substances.

The film also touches on nuclear reactions and the conversion of matter to energy, ultimately presenting the universe as a balanced system of matter and energy. Keywords matter, energy, kinetic energy ...