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Briefly describe the nature of three types of intramolecular bonding and two types of intermolecular bonding (drawings encouraged)

The terms intra- and intermolecular bonding refers to bonds formed between atoms within molecules and between two or more molecules respectively. Intramolecular bonding would be: ionic, covalent and metal...

TD
2108 Views

Who was resposinble for Czechoslovakia's Velvet Revolution in 1989?

Student dissidents played an important part within the resistance circles as well as making the most direct contribution to the Velvet Revolution. It was the students that acted (however unintentionally) ...

TD
2004 Views

Why is an object moving in a circle at a constant speed said to be accelerating?

First of all, it is important to remember that an object's acceleration is the rate of change of its velocity, not its speed. Velocity is a vector quantity and so must have a direction as well as a magnit...

SG
Answered by Sam G. Physics tutor
13477 Views

A mobile phone falls to the floor. The glass screen shatters while the aluminium frame remains intact. Explain why this happens in terms of the properties of glass and aluminium.

The glass screen is a brittle material so breaks with little plastic deformation.The aluminium material however shows elastic behavior and will, when the force is removed return to the original shape. Thi...

LC
Answered by Lewis C. Physics tutor
2535 Views

Magnesium is in Group 2 of the Periodic Table. It has a number of naturally occurring isotopes, including 24Mg and 26Mg. (a) (i) Explain, in terms of the subatomic particles in the atoms, why 24Mg and 26Mg are isotopes.

Both isotopes of magnesium have 12 protons as shown by Mg's proton number in the periodic table.
By definition an isotope is an atom with the same number of protons but differs in its number of neutr...

LC
Answered by Lewis C. Chemistry tutor
8399 Views

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