f their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to Rank the elements or compounds in the table below ing the substance with the next highest boiling point, and (Choose one) 1 (highest) chemical symbol, chemical formula or Lewis structure substance H C- H 3 Н—С — Н 4 (lowest) H2 (Choose one) Co (Choose one) v :0: II (Choose one) v D H C- H

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Q: Initial Concentration (mol/L) Rate of Appearance of C A В (mol/L.s) 0.10 0.10 2.0 x 103 0.20 0.10…

A: We know that :-  Rate = K [ A ]x [ B ]y Where, x is Order of A and y is order of B

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.