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Crude oil is seperated using a method called fractional distillation. The hydrocarbons that make up crude oil have different boiling points, so when the crude oil is heated, each compound evaporates at a dif...

Avogadro's number is simply used as a way of telling us how much of a substance we have. The number is 6.022 x 10 23 , and if we have that number of particles, we can make it easier by saying we have one mol...

An atom of hydrogen contains 1 proton, 1 electron and 0 neutrons. When hydrogen loses an electron to become H+ only a proton remains. We can work out the number of neutrons an atom has by deducting the atomi...

First can you tell me what kind of reaction is this reaction? Thermal decomposition Secondly can you tell me the products of this reaction and have a go writing the formulae? CaCO 3 -> CaO + CO 2

A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in ord...