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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 কাঁটাগাছ 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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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 টেবিল 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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From the article: Molecules with Strange Names
Chemistry is funny and chemists have a great sense of
humor! Do আপনি have a chemistry joke অথবা riddle অথবা are
you looking for one? Share your chemistry joke অথবা read
jokes দাখিল হয়েছে দ্বারা 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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Chemistry...
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লেবু রস is acidic and weakens paper. When paper
is heated, the remaining acid turns the লেখা brown
before discoloring the paper.
Difficulty: Easy
Time Required: A Few Minutes
Here's How:
Tips:
What আপনি Need
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Chemistry
1. Squeeze lemons to
obtain their রস or
obtain bottled lemon
juice.
2. Use the রস as 'ink'
by applying it to a
stick অথবা paintbrush
and লেখা on paper.
3. Allow the paper to
dry.
4. When আপনি are ready to
read your invisible
message, hold the
paper up to sunlight,
a lightbulb
(recommended),...
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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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Potassium permanganate solution changes colour when poured into sodium hydroxide and sugar solution.
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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 প্রথমপাতা Be Like?
The International মহাকাশ Station with ATV-2 and
Endeavour (Image ESA and NASA)
Look around your প্রথমপাতা and count the number of things
around আপনি that have come out of chemistry
breakthroughs and inventions. Without chemistry we
wouldn’t have light bulbs, mobile phones, ফেসবুক or
Twitter. Much of the খাবার we eat and clothes we wear
involve chemists and chemistry too.
If we had never...
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