Welcome to Accelerated Study Notes

Message of the day (that never changes)

All systems are normal right now.

If you do get locked out for whatever reason, you can always email us at admin@acceleratedstudynotes.com to recover your password, or follow the instructions on the screen.

Registering a new account

If for any reason you can not see the captcha (try to refresh page using Ctrl + Shift + r or Ctrl + Shift + F5), please email us at admin@acceleratedstudynotes.com with your desired username and email. We will create the account for you and a random password will be emailed to you.

Captcha Error

If you do not see the captcha, please either refresh or navigate to http://www.acceleratedstudynotes.com/wp-login.php

Member Login

Lost your password?

Registration is closed

Sorry, you are not allowed to register by yourself on this site!

You must either be invited by one of our team member or request an invitation by email at info {at} yoursite {dot} com.

Note: If you are the admin and want to display the register form here, log in to your dashboard, and go to Settings > General and click "Anyone can register".

IGCSE Coordinated Science: Types of Oxides

By (Administrator)

Click here to go back to Table of Contents

8.2 Types of Oxides

1 Classify oxides as either acidic or basic, related to metallic and non-metallic character of the other element.

Oxides are compounds composed of oxygen and another element.

File:Soda bubbles macro.jpg

Basic Oxides

Copper (II) oxide is called a basic oxide since it can neutralize an acid:

Base + Acid —> Salt + Water

CuO (s) + 2HCl (aq) —> CuCl2 (aq) + H2O (l)

Iron (III) Oxide and magnesium also behaves in a similar way- they also neutralize acids, and therefore they are basic oxides.

Generally, metals react with oxygen to form basic oxidees.

Acidic Oxides

Carbon Dioxide is slightly soluble in water as the solution will turn litmus paper red, which makes Carbon Dioxide acidic. 

CO2 + H2O —> H2CO3

Sulfur dioxide and phosphorus pentoxide also dissolve in water to form acids, so therefore, they are also acidic oxides.

Generally, non-metals react with oxygen to form acidic oxides.

2 Further classify some other oxides as neutral, given relevant information.

  • Some oxides of non-metals are neither acidic nor basic.
  • These are called neutral oxides.
  • Neutral oxides neither react with acids or bases.

Examples Include:

  • Carbon Monoxide
  • Dinitrogen Oxide

 

Tags: , , , ,

Leave a Reply