Top answers

Chemistry
All levels

Describe one method of producing oxygen gas.

Decomposition of Hydorgen peroxide solution, H2O2, using Manganese (IV) oxide as a catalyst. Effervescence is observed as the oxygen gas is evolved and the gas can be collected by di...

GI
2852 Views

Give the essential conditions of the manufacture of sulfuric acid by the contact process.

-Temperature of 450°C

  • Pressure of 2 atm

  • Vanadium(V)oxide catalyst.

GI
4356 Views

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

Al3+ + 3e- → Al 2O2- → O+ 4e-

GI
2845 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 rout...

CL
Answered by Chung L. Chemistry tutor
10414 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
6613 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning