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An unknown amount of copper, at 95 degrees C,, is placed in 100 g of water at 20 degrees C. It reaches temperature equilibrium at 60 degrees C. What is the mass of the copper?
Give chemical reaction in support of each of the following statements: (i) The +1 oxidation state gets stabilised progressively from Ga to TI in Group (ii) All the bonds PCl5
Q. What is Stoichiometry? Ans. As you know a chemical equation is like a recipe. Each of the different ingredients combine in certain ratios to form the end product. The
Q. Show the chemical properties of Uranium? Uranium is mainly extracted from pitchblende. The concentrated ore (pitchblende, U 3 O 8 ) is washed and then fused with sodium nitr
Q. Show the Multiple covalent bonds between electron pairs? Ans. Two atoms may share one electron pair, two electron pairs or three electron pairs. The bonds formed in th
LIST METALIC AND NON METALIC ELEMENTS
Q. Classification of emulsifiers? Emulsifiers can be classified under two categories. These are: • Natural: These are naturally present in foods. Some examples are phosphol
why HOH is not harmful to our body but Phenol is?
what are the uses of laws of chemical combination
For n= 3 energy level, the number of possible orbitals (all kinds) are: (1) 1 (2) 3 (3) 4 (4) 9 Ans: 9
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