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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 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 hydrochloric acid with a bunsen burner...
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Researchers from the universiti of
Connecticut recently unveiled their latest
invention , which is a long-lasting LED
light bulb that makes use of salmon, ikan 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.
David Walt, a chemistry professor at Tufts
University , explained: "When UV light is
shined on the material, one dye absorbs the
energy and produces blue...
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The scientist by:nurdrage
love is like
Radiation Decay Poem
Chlorine
H2SO4
Mercaptans
science is changeable
elemental Islands of Stability
MATTER (chemistry)
Radiation Decay Poem
Chmistry is soo much fun
Chlorine Limerick
It's ionic that we bond
freshman chem lab
song
Ode to the Electron
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Chemistry
i am a scientist i find art in nature in a universe of
mysteries and a world of wonders i bring light to
the unknown i change the world in strange ways i'm
colorful i'm persistent i'm a little volatile i can...
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From the article: Molecules with Strange Names
Chemistry is funny and chemists have a great sense of
humor! Do anda have a chemistry joke atau riddle atau are
you looking for one? Share your chemistry joke atau read
jokes telah dihantar sejak 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
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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 meja, jadual 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
important scientific discoveries of all time
and explains them with historical re-
creations, archival footage and interviews
with scientists.
100 Greatest...
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lemon jus is acidic and weakens paper. When paper
is heated, the remaining acid turns the Penulisan brown
before discoloring the paper.
Difficulty: Easy
Time Required: A Few Minutes
Here's How:
Tips:
What anda Need
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Chemistry
1. Squeeze lemons to
obtain their jus or
obtain bottled lemon
juice.
2. Use the jus as 'ink'
by applying it to a
stick atau paintbrush
and Penulisan on paper.
3. Allow the paper to
dry.
4. When anda are ready to
read your invisible
message, hold the
paper up to sunlight,
a lightbulb
(recommended),...
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