When 25.0 ml of 0.500 m h2so4 is added to 25.00 mk of 1.00 m koh in a coffee-cup calorimeter at 23.50◦ c, the temperature rises to 30.17◦ c. calculate dhrxn for this reaction. (assume that the density of water of and specific heat capacity of the solution are the same as for pure water). ( –55.8 kj/mol koh, –112 kj/mol h2so4)

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

What relationship exists between an enzyme and a catalyst?