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Q. What is Entropy? Ans. The strangest thing about entropy is that it is denoted by the letter S. Entropy is the measure of the disorder in a system. A system with low en
Question: Does the number of steps in a reaction process affect the enthalpy change of the overall reaction? Hypothesis: To compare experimental data to functionality of He
what are the principle underlying the extraction of metals
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies t
Q. Significant figures of the number of digits? Significant figures of the number of digits reported in a measurement signify how precise the measurement is. The further di
Q. Atomic mass of an element? The number at the bottom of every square in the periodic table is the atomic mass of that element in amu. A scan of the periodic table will withou
what are the different types of colloidal system?
Bakelite: It is thermosetting plastics which are most widely used and the most important plastics. Preparation: It is formed by condensation reaction of phenol an
Bohr model of an atom could not account for : (1) Emission spectrum (2) Absorption spectrum (3) Line spectrum of hydrogen (4)Fine spectrum Ans: Fine spectrum
Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
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