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what is the empirical formula of a compound that contains 53.73% iron and 46.27% sulphur?
electrode system
Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
what is electrcn
Which of the following is isoelectronic with carbon atom: (1) Na + (2) Al +3 (3) O 2- (4)N + Ans: N +
CARBON, SILICON AND GERMANIUM With the valence electron configuration s 2 p 2 the nonmetallic group of elements 14 may form compounds with four tetrahedrally directed covalent
What is the difference between reaction stoichiometry and composition stoiciometry?
Why phenol can also be prepared from chlorobenzene(Dow''s process)
classification
what is chemical properties of p block elements
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