Over a million students use our free study notes to help them with their homework
Rather than the furry creature, in chemistry a mole is a unit used to measure substances. Its equivalent to 6x1023 atoms, the number of carbon atoms in 12g of carbon.
To find a...
Firstly, we should define the first ionisation energyThe first Ionisation Energy is the energy required to remove one mole of electrons from one mole of gaseous atoms to form a mole of ga...
Metals can be described as a lattice of close-packed positive ions in a sea of delocalised electrons. Because the electrons are delocalised, they can move freely through the metal.
Looking at the reaction between hydrogen and carbon monoxide to form methanol:
CO + 2 H2 ⇌ CH3OH
There are 3 moles on the left hand side and 1 mole on ...
A useful way to answer oxidation/reduction questions is to remeber the acronym OIL RIG:
Oxidation Is Loss (of electrons)
...
←
189
190
191
192
193
→
Internet Safety
Payment Security
Cyber
Essentials