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Chemistry
A Level

What do the arrows in mechanisms represent?

The arrows represent the movement of a lone pair of electrons. For example, if a mechanism involves an oxygen atom forming a bond with a proton (hydrogen ion), then the oxygen would ‘donate’ a lone pair t...

Answered by Tarek K. Chemistry tutor
2136 Views

What happens to the physical properties(solubility/boiling/melting point) as chain length increases, and as functional groups are added onto the chemical compound?

As chain length increases, the boiling/melting point of hydrocarbon compounds increases. This is because whether a compound will change state from liquid to gas (boil) or not, depends upon the intermolecu...

Answered by Abbas K. Chemistry tutor
2060 Views

Describe the key properties that rely upon metallic bonding and explain this.

Metallic bonding consists of a strong electrostatic attraction between positive metal cations and delocalised electrons. This arrangement is regular and the attraction is non-directional meaning that laye...

Answered by Tesni H. Chemistry tutor
1665 Views

What is the difference between an isotopic and isoelectronic species?

Isotopes are chemical species that have the same number of protons but a different number of neutrons as each other in their nuclei. For example, Deuterium (H2) and Tritium (H3) are ...

Answered by Sohail K. Chemistry tutor
16268 Views

The alkanes and the alkenes are examples of homologous series of compounds. Name 3 properties of a homologous series.

There are a range of answers you could give: Homologous series' are chemically similar or chemically the same or react in the same way. They contain the same functional group, the same general formula (e....

Answered by Ursula D. Chemistry tutor
6064 Views

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