2 revised 1 / 3 D - 125% + lo CHEM 102 Review Sheet for Exam 2 1. Use the table of data shown below to calculate the average rate of reaction bety Time (s) [A] mol/L (a) 6 x 10-3 0 0.20 5 0.14 (b) 8 x 10-3 10 0.10 15 0.071 (c) 5 x 10-3 20 0.050 (d) 200 2. Consider the following reaction. 3A + 2B The rate of disappearance of A is gi The rate of appearance of B in terms of the rate of disappearance of A is given by: (a) 2Δ[Α]/3Δt (b) -2Δ[Α]/3Δt (c) -3Δ[Α]/2Δt (d) -A[A 3. The table shown below contains concentration and rate data for this reaction. A-

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

What is bromine+calcium iodide--> calcium bromide +iodine balanced

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.