Homework Answers
Solution
E. 3.32 × 1023
We know that according to Avogadro number
1 mole contains 6.023 × 1023 atom
So 0.552 mole contains
Number of atoms = Mole × Avogadro number
Number of atoms = 0.552 mole × 6.023 × 1023 atoms/mole
Number of atoms = 3.32 × 1023 atoms
3.32 × 1023 iron atoms are present in 0.552 mole of iron.
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45) How many iron atoms are present in 0.552 mol of iron? A) 27.98 y old sobilo B) 2.798 x 1024 bolsoba C) 55.85 D)...
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25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal Tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F($) - NaF(s) + Cla(e) A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg(1)...
explanation please
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25. According to the VSEPR theory, what is the geometry (shape) around the phospt atom in the Lewis structure shown below? H-P-H D) E) trigonal pyramidal tetrahedral A) linear B) bent (angular) C) trigonal planar 26. Which of following molecules is polar? B) H-B-H 27. How is the reaction shown below best classified? 2NaCl(s)+F:) - NaF(s) + Cl() A) decomposition B) combination C) single-replacement D) double-replacement E) precipitation 28. How is the reaction shown below best classified? 2HgO(s) 2Hg()...
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