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Q. Show Sulphide Minerals? In these minerals metals are present as their sulphides. For example, iron pyrites (FeS 2 ), calcocite (CU 2 S), chalcopyrite (CuFeS 2 ), zinc blende
If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
An excess of NaOH solution was added to 100 ml of a ferric chloride solution. This caused the precipitation of 1.425 gram of Fe(OH)3 . calculate the normality of ferric chloride so
I get stuck on how to explain things.. eg I need to explain that you coat 5 nails and put one different nail with a different coating into a different substance etc, and i just can
#question.which element has the highest oxidation state and why.
what risks are involved with the instrument
A student wishes to prepare 250ml of a 0.20mol/L solution of oxalic acid (COOH)2.2H2O. a) Calculate the amount (no.of moles) of oxalic acid required. b) Calculate the mass of oxali
The Fermi level is The highest occupied energy level at 0 0 K.
Q. Describe Sulphurous Acid ? Sulphurous acid H 2 SO 3 is known only in solution. It exists mainly as a hydrate of sulphur dioxide SO 2 . 7H 2 O two series of salts the bisulp
name 5 organic compound that can be purify using simple distillation
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