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The difference among Threshold energy and average energy of the molecules is known as activation energy.
Q. Describe about groups or families in periodic table? Every element may be represented by a one or two letter symbol. In the middle of nineteenth century a Russian chemist Dm
Q. How many centigrams are in 5 kilograms? Two conversion factors are essential to solve this problem. Keep in mind that there are 1000 grams in a kilogram and 100 centigrams i
energy of electron in hydrogen atom
Name the Which is a covalently bonded crystal? germanium
working of electrolysis process? components of electrolysis process? advantages and disadvantages of electrolysis process?
When 100ml of M/10 h2so4 is mixed with 500 ml of M/10 naoh then nature of resulting solution and normality of excess of reatant left is 1)Acidic,N/5 2)basic ,N/5 3)Acidic,N/20 3)ac
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why the hydroxides of alkaline earth metals are less basic than alkali metals of the corresponding periods?
first two groups are metal but why hydrogen is placed in first group
Precipitation titrations - Types of titrations The titrations that are based upon the formation of insoluble precipitates, while the solvent of two reacting solution are brough
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