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This of the following substances has giant covalent structure:
(1) Iodine crystal
(2) Solid co2
(3) Silica
(4) White phosphorus
Ans: Silica co2
When NaCl is dissolved in water, the sodium ion become
need help with calculating gases
calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume
The electronic configuration of four elements are given in brackets: L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p
Existence of positively charged nucleus was established by: (1) Positive ray analysis (2) α -ray scattering experiments () X-ray analysis (4) Discharge tube exper
2Zns + 3O 2 ---------> 2ZnO + 2SO 2 ZnCO 3 -------------> ZnO + CO 2 ZnO +C ------> Zn +CO ZnO + CO -----------> Zn + C0 2
Silver mirror test and Fehling's solution test - Glucose (a) Silver mirror test : A combination of glucose and ammonical silver nitrate is warmed in a test tube. Presence of si
explain industrial manufacturing process of westron and explain the advantages and disadvantages of westron
Uses of Proteins (a) Proteins constitute as necessary part of our food. Meat, eggs, fish, cheese offer proteins to human beings. (b) In textile: Casein (a milk protein) is u
Factors affecting tga curve
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