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Chemistry
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How can you distinguish between an endothermic reaction and an exothermic reaction based on temperature change of the surroundings.

In an exothermic reaction, energy is released from the system and into the surroundings, the system loses energy so the surroundings gain energy. The surroundings gain energy as heat and therefore there i...

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Answered by Kuba S. Chemistry tutor
7282 Views

Why does ozone absorb a broader range of wavelengths of UV light than oxygen?

Covalent molecules such as oxygen and ozone absorb different ranges of UV light mainly due to differences in the types of bonds that make up their structure. It is therefore useful to first consider the L...

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Answered by Eleanor S. Chemistry tutor
14343 Views

What is electronegativity?

"Electronegativity is the power of an atom to attract the electron density in a covalent bond to itself"
In order to understand electronegativity we mu...

TD
2545 Views

Describe the structure and properties of graphite

Graphite is made from layers of carbon which contain many 6-membered carbon rings (hexagonal). Each layer is held together by each carbon being covalently bonded to 3 other carbon atoms and this leaves a ...

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Answered by Lucy S. Chemistry tutor
5496 Views

Define first ionisation energy

Remember that ionisation energy is an endothermic process, in which energy from the chemical system is used to remove electrons from atoms in the GASEOUS STATE.

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Answered by Obioma C. Chemistry tutor
2253 Views

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