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Chemistry
A Level

What is the difference between an ionic and covalant bond?

A covalant bond is a very strong bond between two atoms. These atoms share a pair of electrons and form molecules.

An ionic bond occurs between two ions (charged atoms). Ions form when an atom lose...

Answered by Anokhi S. Chemistry tutor
3156 Views

How does infrared spectroscopy work and where might you see it used in real life?

Infrared radiation has a longer wavelength than visible light, and is also called thermal radiation. The chemical bonds in molecules absorb infrared radiation at characteristic frequencies, which means it...

Answered by Mari N. Chemistry tutor
2336 Views

Write equations and give the mechanism for the reaction of butanone with: 1) NaBH4 and 2) HCN

The first thing we need to do in this type of organic chemical reaction, is identify our electrophiles and nucleophiles. We know that due to the electronegativity of the oxygen atom in carbonyl compounds ...

Answered by Harry S. Chemistry tutor
5278 Views

Describe the structure and bonding in Benzene (C6H6).

Benzene is a planar 6 membered cyclic ring, with each atom in the ring being a carbon atom (Homo-aromatic). Each carbon atom is sp^2 hybridised being bonded to two other carbon atoms and one hydrogen atom...

Answered by George N. Chemistry tutor
29985 Views

A sample of nitrogen gas is heated to 100°C, at a pressure of 10kPa and volume of 0.2m^3. How many moles of gas are present?

In order to answer this question, the equation: PV=nRT must be used.P is pressure, V is volume, n is moles, R is the gas constant and T is temperature. Firstly the units in the question must be converted ...

Answered by Tara B. Chemistry tutor
10322 Views

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