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first two groups are metal but why hydrogen is placed in first group
Q. What are the diffrent forms of energy? Ans: Kinetic energy is energy of motion. Gas molecules of a given substance move much more rapidly than do the molecules in the soli
What does the HA and A- stand for in buffer solution equations? Ka=HA/A-
Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (2) K=4s 2, Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (3) K=4s 2 Cr= 3d 5 4s 1 , Cu= 3d 10
Formic Acid or Methanoic acid (HCOOH) Formic acid is the very first member of monocarboxylic acids series. It takes place in the sting of bees, wasps, red ants, stinging nettle
Q. Define Elements and Compounds? Pure substances are categorized into two categories that are elements and compounds. An element is a substance that can't be separated into
conclusion for assignment on topic applications of colloids
why is it useful to use moles to measure chemical quantities
Aluminium metal is frequently used as a reducing agent for the extraction of metals such as chromium, manganese etc. Explain why? Ans) Aluminium is an highly electropositive metal
The diffraction of x-ray by a crystal gives 1st order ref at 14•12'' if lattice dist is 3.14 A• wht is the wavelength of x-ray
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