SAVE MY A LEVEL CHEMISTRY
Chemistry
edexcel a level chemistry
Sample Data
| Front | What is empirical formulae? |
| Back | the simplest whole number ratio of the atoms of each element in a compound
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| Front | Define standard enthalpy change of formation |
| Back | the enthalpy change when one mole of the compound forms from its elements under standard conditions with the elements and the compound in their standard (stable) states. |
| Front | Why are primary aliphatic amines are stronger bases than ammonia? |
| Back | because the alkyl groups are electron releasing and push electrons towards the nitrogen atom and so make it a stronger base |