Why is ammonia-ammonium chloride buffer added?
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Why does a dog hang out his tongue, when it is hot ?
The heat of the sun reaches us and the intervening air is not heated up Why ?
What is phase transfer catalyst?
Why does the electric fan cool more efficiently in May than it cools in September?
Why is ammonia added? Why is that same amount of ammonia added?
What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.
What is the composition of bronze ?
What is the difference between hard and soft water ?
When we heat one end of and iron bar, the other end also gets heated up why ?
who is the king of chemistry?
Why is mercuric chloride added?
Mention the different types of conductivities.