Which statement accurately describes how the velocity of an object in free fall changes A. the distance it travels each second varies irregularly.
B the distance it travels each second is constant
C the distance it travels each second is increases at a constant rate.
D the distance it travels each second decreases at a constant rate.

In an effort to address concerns about global warming, a power plant in portland,oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be

An experimental procedure requires a 10 ml of acid to be dissolved

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules