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Theoretical Yield of NaCl = 86.7kg (3sf)Percentage Yield of Iron = 57.7% (3sf)
The bond angle is 104.5 degrees. This is because of the pairs of electrons around the oxygen atom: it has 2 bonded pairs and 2 lone pairs. Lone pairs and bonded pairs of electrons repel each other. Howeve...
A catalyst can provide a different mechanism or pathway for a chemical reaction through stabalistion of the transition state. The catalyst will lower the activation energy of the reaction meaning a greate...
The detail required for many A-level questions is indicated in the number of marks available. As this question awards 3 marks, 3 separate points must be made. For example, the first stage of a heterogeneo...
In electrolysis, positive ions will be attracted to the negative cathode (the cathode being negative can be remembered because cats are evil). However, in aqueous solutions there are 2 positive ion...
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