The second-order decomposition of hi has a rate constant of 1. 80 x 10−3 m−1 s−1. How much hi remains after 45. 6 s if the initial concentration of hi is 3. 81 m?.

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.