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lithium and beryllium markedly differ from other members of their respective groups.
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
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
When an electron jumps from L to K shell: (1) Energy is absorbed (2) Energy is released (3) Energy is sometimes absorbed and sometimes released (4) Energy is nei
Hi. I''m in year 11 and writing a chemistry report on the concentration of HCl in brick cleaner. The product I''ve chosen is a 20L solution of HCl, 30% HCl. I have to find the conc
role of chemistry in our daily life
a solid weak acid i weighed, dissolved in water and diluted to exactly 50ml. 25ml of the solution is taken out and is tittrated to a natural endpoin with .10M NaOH. The titrated po
Point imperfection: They are imperfect point-like regions in the crystal. One or two atomic diameters are the typical size of a point imperfection. A substitution impurity and an
Importance of Chemistry in Life - Chemistry in Action Chemistry plays vital role in our regular life from the starting, it has been in the service of mankind. Our daily needs o
The maximum number of unpaired electron can be present in d orbitals are: (1) 1 (2) 3 (3) 5 (4) 7 Ans: 5
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