Top answers

Write ionic half-equations for the reactions at the electrodes in aluminium extraction.

Al 3+ + 3e - → Al 2O 2- → O 2 + 4e -
GI
3207 Views

How do I sketch accurate graphs for rational functions in a short amount of time? (I.e. A step by step guide of sketching graphs)

Often in Further Pure modules for various exam boards a common question in the exam paper will be to sketch a graph for a rational function. The step by step aproach I used is as follows: Change the form (if...
DH
3191 Views

Explain, in general, how a catalyst works

A catalyst is a material that can speed up a reaction, but reamins chemically unchanged at the end of the reaction . A catalyst works by providing the reactants an alternative route of reaction with a lowere...
CL
Answered by Chung L. • Chemistry tutor
10975 Views

Translate the following short text into French: To celebrate my birthday, I invited my friends to my house. My mother prepared a special meal.

Pour fêter mon anniversaire, j'ai invité mes amis chez moi. Ma mère a préparé un repas spécial.
KW
Answered by Katie W. • French tutor
5302 Views

What kind of compound is NaCl and why?

Na is a group 1 metal and Cl is a group 7 non-metal so they form an ionic bond.
OA
Answered by Ozlem A. • Chemistry tutor
7040 Views