Top answers

Chemistry
A Level

What is entropy

Energy that cannot do work, often compared to the disorder of a system. Total entropy can never decrease.

Answered by Andrew G. Chemistry tutor
1935 Views

Cracking of the unbranched compound E, C6H14, produced the saturated compound F and an unsaturated compound G (Mr = 42). Identify these compounds and write an equation for the reaction.

Compound E is an unbranched alkane. The general formula of an alkane is CnH2n+2.Compound E is CH3CH2CH2CH2CH2CH3.Com...

Answered by Sophie K. Chemistry tutor
4526 Views

What is a bond?

Atoms can be modelled as point positive charges with clouds of electrons around them. When two atoms come together close enough, a region of higher electron density forms between the two atoms. This means...

Answered by Rokas E. Chemistry tutor
1893 Views

Name and explain briefly the main stages of mass spectroscopy.

Mass spectroscopy is a highly sensitive method of analysing samples of elements and determining the isotopes present and their relative amounts. We can break down the method into four major steps: (in ord...

Answered by Esther W. Chemistry tutor
1986 Views

What causes a chemical reaction to happen?

There are two aspects to this question: thermodynamics and kinetics.
It is a fundamental law that the entropy of the universe must increase for a process to be feasible. This implies that the Gibbs ...

Answered by Jacob L. Chemistry tutor
2433 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences