The mass of a radioactive substance follows a continuous exponential decay model. a sample of this radioactive substance has an initial mass of 9575 kg and decreases continuously at a relative rate of 12% per day. find the mass of the sample after five days.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.