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Firstly all of benzene's bonds are the same length and therefore there cannot be both double bonds and single bonds in the molecule. Secondly the bond angles are all the same as well which would not be th...

We start with aluminium (Al). Al conducts electricity in both solid and molten states, this is because Al has metallic bonding between fixed positive Al^(3+) ions and delocalised electrons. The delocalise...

It's B. Chlorobutane

In explaining this answer, I'd test the students knowledge of what a homologous series is. And then we'd draw out the alternative answers and I'd ask the student to explain why...

The atomic number is equal to the number of protons in an atom. The number of protons in an atom is equal to the number of electrons in an atom so the number of electrons in nitrogen is 7 electrons

During a titration, an acid is added drop by drop into an alkaline solution and the pH decreases. End point is the point at which the alkaline solution has become neutral, that is pH 7. You can use an ind...