ODWS icon

The Open Door Web Site
HOMEPAGE BIOLOGY PHYSICS ELECTRONICS HISTORY HISTORY OF SCI & TECH MATH STUDIES LEARNING FRENCH STUDY GUIDE  PHOTO GALLERY
CHEMISTRY HOMEPAGE TOPIC CHAPTERS PHYSICAL SCIENCE LABORATORY WORK 

 

 

Navigation

Lithium homepage
Sodium HP
Potassium HP
Rubidium HP
Caesium HP
Francium HP

 

Group 1 : The Alkali Metals

Metal Hydroxides
The Alkali Metals
Precipitate reactions

Visual Chemistry Homepage : The Periodic Table

 

Tutorials

Atomic Structure
Electrovalent Bonding
Covalent Bonding
Water
Transition Metals
Metal or Non-metal?
Noble Gases

 

General

Element Identification Timeline

VISUAL CHEMISTRY

Custom Search

Group 1 : The Alkali Metals : Reactions

 

1. With oxygen gas

A small amount of the metal oxide is produced but the majority of the product is the metal peroxide

The metal will burn with a characteristic colour. Sodium gives a yellow flame, lithium a red flame and potassium a lilac-coloured flame.

Formation of the oxide:

Reaction 1

Equation 1

Formation of the metal peroxide:

Reaction 2

Equation 2

 

2. With hydrogen gas

The metal is heated as hydrogen gas is passed over it. The metal hydride is formed.

Reaction 3

Equation 3

 

3. With water

Lithium reacts less quickly than the other alkali metals. The reaction can be quite explosive with the more reactive metals. A piece of potassium will move quickly over he surface of the water and a small, lilac flame is sometimes seen. The metal hydroxide is formed and hydrogen is released.

Reaction 4

Equation 4

 

4. With halogens

The corresponding salt is formed. The example shows sodium reacting with chlorine gas

Reaction 5

Equation 5

 

The Open Door Web Site is non-profit making. Your donations help towards the cost of maintaining this free service on-line.

Donate to the Open Door Web Site using PayPal

SITE MAP
WHAT'S NEW?
ABOUT

PRIVACY

COPYRIGHT

SPONSORSHIP

DONATIONS

ADVERTISING

© The Open Door Team 2017
Any questions or problems regarding this site should be addressed to the webmaster

© Shirley Burchill 2017

Hosted By
Web Hosting by HostCentric


SiteLock