1 Write the balanced chemical equation for the reaction. 2 Look up the bond energy of each bond that breaks and each bond that forms. 3 Use the chemical equation to work out how many of each type of ...

The processes like crystallisation, boiling, vaporisation, burning of colour, melting point, hardness etc, are called physical changes. These are reversible in nature. The processes like ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

What reaction makes the most energy? Normally, exothermic reactions release the greatest amount of energy. An oxidation reaction is described as the process in which heat is generated or light is ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Thermal means heat. Decomposing is the process of breaking down. Thermal decomposition is a chemical reaction that happens when a compound breaks down when heated. When sodium hydrogencarbonate is ...

While there are plenty of ways to make carbon-based products from CO 2, these methods usually require a lot of energy because the CO 2 molecules are so stable. If the energy comes from the burning of ...