Ar/Relative Atomic Mass: The mass of a single atom relative to Carbon 12
Avagadro's Number: The number of particles of a substance in 1 mole of it: 6.022 x 10^23
Molar Volume: The volume of space 1 mole of any gas takes up at room temperature and pressure: 24dm^3 or 24000cm^3
Mole: The number of particles it takes for Mr to equal mass in grams. Avagadro's number of particles are in 1 mole.
Mr/Relative Formula Mass: The mass of a molecule relative to carbon 12.
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Section 3 a) Specification
3.1 explain the terms homologous series, hydrocarbon, saturated, unsaturated, general formula and isomerism. A homologous series is a grou...
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The group 7 elements, also known as halogens, are F, fluorine, Cl, chlorine, Br, bromine, I, iodine, and At, astatine. They all have antimic... -
Metals can be placed in an order of most to least reactive, called the reactivity series. This can be remembered using an acronym: Plea... -
Particles of a substance can be present in different physical states, the states of matter. They are solid, liquid and gas, and increasing ...
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