30.0 mL of 2.0 M NH3(aq) at 21.0°C is mixed with 30.0 mL of 2.0 M HCl(aq) at 21.0°C in a calorimeter. As the reaction
proceeds, the temperature rises to 33.56°C. Assume the
densities of the solutions are both 1.00 g/mL and the specific
heats are 4.18 J/gºC. Calculate the enthalpy change (AH) of
the reaction in KJ.

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.

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

If two atoms are bonded to a central atom with no lone pairs, how will they be arranged