Chlorine gas can be prepared in laboratory with hydrochloric acid and manganese-dioxide.


Method

Put manganese lump in a round flask , now put concentrated hydrochloric acid into the round flask with tistle funnel and fit the flask with cork having a hole ,Now attach a tube into the hole of cork and leave to tube into an empty container,so the gas can be collected.The container must be sealed with cork having only one hole for the attachment of tube (from flask to container).Set the apparatus and there should be no leakage.Now heat the manganese lump and hydrochloric acid with a bunsen burner...

What would life would be like if nobody had ever studied
chemistry? It’s easy to grumble about the homework,
but it’s impossible to overestimate chemistry’s
importance in our daily lives.
What Would Your tahanan Be Like?
The International puwang Station with ATV-2 and
Endeavour (Image ESA and NASA)
Look around your tahanan and count the number of things
around you that have come out of chemistry
breakthroughs and inventions. Without chemistry we
wouldn’t have light bulbs, mobile phones, Facebook or
Twitter. Much of the pagkain we eat and clothes we wear
involve chemists and chemistry too.
If we had never...

limon juice is acidic and weakens paper. When paper
is heated, the remaining acid turns the Pagsulat brown
before discoloring the paper.
Difficulty: Easy
Time Required: A Few Minutes
Here's How:
Tips:
What You Need
Topics
More From Chemistry
More From About .com
TOP
©2014 About.com.
All rights reserved.
Switch to Desktop Site
Menu
Chemistry
1. Squeeze lemons to
obtain their juice or
obtain bottled lemon
juice.
2. Use the juice as 'ink'
by applying it to a
stick or paintbrush
and Pagsulat on paper.
3. Allow the paper to
dry.
4. When you are ready to
read your invisible
message, hold the
paper up to sunlight,
a lightbulb
(recommended),...

From the article: Molecules with Strange Names
Chemistry is funny and chemists have a great sense of
humor! Do you have a chemistry joke or riddle or are
you looking for one? Share your chemistry joke or read
jokes naisumite sa pamamagitan ng other readers. Share Your Chemistry
Joke
Potassium and Oxygen
GTFO
Chemistry.
No Reaction
haha joke
oh-zone
Sad chemistry teacher
Potassium
Hot Chemists Rock
Another Chemistry Joke
Oxygen and Magnesium
Sick Chemist
Cobalt
Over Titration
Complete Dissociation
1-15 of 617 Next
Topics
More From Chemistry
More From About .com
TOP
©2014 About.com.
All rights reserved.
Switch to Desktop Site
Menu
Chemistry...