Top answers

Chemistry
All levels

Draw the electronic structure of Sodium Chloride and explain how an ionic bond affects the melting and boiling point.

Ionic bonds are very strong, with elements involved in a compound having a full outer shell of electrons due to donating and accepting electrons, allowing them to be in a very stable state. In this case, ...

Answered by Hans D. Chemistry tutor
4188 Views

Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer. Give the formulae of the ions formed. (5 marks)

electrons, which are negative particles that are part of the atom, are transferred from potassium to sulfurtwo potassium atoms each lose one electron and they form K+ ions as they have lost negative charg...

Answered by Alisha M. Chemistry tutor
2108 Views

Why are complex ions containing transition elements coloured?

Firstly a transition element is an element which forms one or more stable ions with incompletely filled d orbitals.Ligands are charged or neutral, ions or molecules, which form coordination bonds with a c...

Answered by Josephine R. Chemistry tutor
7898 Views

In an analysis of copper sulfide, 12.7g of copper was found to be combined with 3.2 g of sulfur. Calculate the empirical formula.

So, the empirical formula means the smallest value, like the lowest common denominator in maths, but instead of fractions we are going to be using chemical formulae. I always find it easiest to set it out...

Answered by Serena S. Chemistry tutor
4942 Views

How can you tell if a reaction is feasible and what factors contribute towards this?

A reaction is said to be feasible or spontaneous when the Gibbs Free Energy (Delta G) of the reaction is <0. Conversely, when the Gibbs Free Energy (Delta G) of the reaction is >0,...

Answered by Jamie R. Chemistry tutor
12584 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