Ammonium nitrate is an ingredient in cold packs used by sports trainers for injured athletes. calculate the change in temperature when 42 g of ammonium nitrate (nh& nos, 80.1 g/mol) dissolves in 250 g water. assume the specific heat of the solution is 4.18 j/(g °c). nh4no3(s)-> nh4"(aq) + no3-(aq) δη-25.7 kj/mol

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.

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?