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How many unpaired electrons are present in Ni2+ cation (atomic number = 28):
(1) 0
(2) 2
(3) 4
(4) 6
Ans: 2
The chemical formula for pure water is H 2 O. Pure water breaks up into an equal number of H + (aq) and OH - (aq) ions. As the amounts of the H + and OH - ions are equal, water i
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100 ch3-ch2-choh-ch2-ch2cl
what is reaction for propanone in iodoform test
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I have 11.2 L of a gas at stp. I need to use the molar volume to find how many molecules are in that gas.
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The specific heat of a substance is the amount of energy required to raise one gram of the material by one degree centigrade. But what happens if you get an ice cube too hot? It i
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