Consider the chemical equations shown here. P4(s) 3O2(g) → P4O6(s) ΔH1 = -1,640. 1 kJ P4O10(s) → P4(s) 5O2(g) ΔH2 = 2,940. 1 kJ What is the overall enthalpy of reaction for the equation shown below? Round the answer to the nearest whole number. P4O6(s) 2O2(g) Right arrow. P4O10(s).

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.