Chlorine gas can be prepared in laboratory with hydrochloric acid and manganese-dioxide.
Put manganese lump in a round flask , now put concentrated hydrochloric acid into the round flask with thistle 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...
Particle physics usually has a hard time competing with
politics and celebrity gossip for headlines, but the Higgs
boson has garnered some serious attention. That's
exactly what happened on July 4, 2012, though, when
scientists at CERN announced that they'd found a
particle that behaved the way they expect the Higgs
boson to behave. Maybe the famed boson's grand and
controversial nickname, the "God Particle," has kept
media outlets buzzing. Then again, the intriguing
What are the most important scientific
discoveries of all time? The answer might
include Copernicus's idea that the sun is
at the center of the solar system,
Newton's laws of motion, Mendeleev's
periodic table of elements, Einstein's
theory of relativity and Darwin's theory of
evolution. There are numerous great
scientific discoveries that have
significantly influenced the way we think
and live throughout history. 100 Greatest
Discoveries recounts the 100 most
One of the latest inventions in the field of
light emitting devices might change the way
people light their homes and design clothes.
The device represents a thin film of plastic
able to conduct electricity and create solar
Scientists working on the international project
are looking forward to bring the organic light
emitting devices to the masses. Thus the
invention could significantly cut costs by
billions of dollars each year.
Researchers from the University of
Connecticut recently unveiled their latest
invention , which is a long-lasting LED
light bulb that makes use of salmon DNA.
Scientists added two different fluorescent
colors to the DNA molecules, the dyes being
spaced from each other at a distance ranging
from 2 to 10 nanometers. After the colors
were added, the DNA molecules are spun into
nanofibers . The UV light that produces LED
is then covered with DNA nanofibers.
You can use liquid nitrogen to make ice cream pretty
much instantly. This makes a nice cryogenics or phase
change demonstration. It's also just plain fun. This
recipe is for strawberry ice cream. If you omit the
strawberries, you can add a bit of vanilla for vanilla ice
cream or some chocolate syrup for chocolate ice cream.
Feel free to experiment!
Time Required: Minutes
What You Need:
Enjoy our range of fun science experiments for kids that
feature awesome hands-on projects and activities that
help bring the exciting world of science to life.
Make Your Own
Quick sand is a fascinating
substance, make some of
your own and experiment on
a safe scale. Amaze your friends by demonstrating how
What you'll need:
1 cup of maize cornflour
Half a cup of water
A large plastic container
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 submitted by other readers. Share Your Chemistry
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