Search our library of Chemistry questions

Top answers

Chemistry

All levels

Describe, with the aid of diagrams, what hydrogen bonding is in water.

Hydrogen bonding is a strong dipole-dipole attraction between a lone pair of electrons on a highly electronegative atom, such as oxygen or nitrogen, and a hydrogen atom on another molecule. In the case of...

Answered by Anna H. • Chemistry tutor

8749 Views

Explain the nuclear model

The atom consists of three sub-atomic particles: Protons; Neutrons and electrons. Protons and neutrons are in the nucleus of the atom and the electrons occupy the electron shells around the nucleus.

<...

Answered by Emily P. • Chemistry tutor

19539 Views

Georgia has a bucket of sandy sea water, and wants to separate it out into it's components: sea-salt, water and sand. What steps should she take to achieve this? How can she check at the end that the water is pure?

First, she should filter the mixture using a filter funnel and filter paper to remove the sand. Then, she should distill the remaining solution, using a bunsen burner, a distillation column and a condensi...

Answered by Nikhil B. • Chemistry tutor

8080 Views