Which of the following statements is true of enzymes a. they're unusable after a reaction b. they don't provide an active site for substrates to bind in a reaction c. they change shape after a reaction d. they act on a specific type of substrate in a reaction

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).

Which of the following are correct values for the ideal gas laws constant r

What is another way to determine mass times acceleration?