Top answers

Chemistry
GCSE

Whats the difference between an ionic bond and a covalent bond?

In an ionic bond, the bond is due to electrostatic attraction between the two ions. In a covalent bond the bond is formed due to the sharing of electrons between the bonding atoms.

Answered by Nehal Praveen S. Chemistry tutor
6084 Views

Why does Magnesium Oxide have a higher melting point than Sodium Chloride?

Both Magnesium Oxide and Sodium Chloride exist as a giant ionic lattices where each oppositely charged ion is held in place by a strong electrostatic attractions. These ionic bonds are strong and require ...

Answered by James C. Chemistry tutor
74628 Views

Why does ice float on water?


A substance will float on water if it has a lower density than water. Therefore, ice floats on water simply because it is less dense than water.

Water is unlike other substances in terms of ...

Answered by Fatima Binte Abdul K. Chemistry tutor
3451 Views

What determines whether something is acidic or basic?

The pH of a particular substance depends on the functional groups that it has within its structure. What is a functional group? A functional group is a group of atoms and bonds within a molecule. The way ...

Answered by Emily A. Chemistry tutor
14183 Views

What is the difference between a polar molecule and a non-polar molecule? Can non-polar molecules be formed by polar atoms?

Polar molecules are those that have permanent dipoles. A permanent dipole occurs due to a difference in the electronegativity of the atoms involved in the bond. You might not be familiar with the term ´el...

Answered by Adrian G. Chemistry tutor
6447 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