These reactants are undergoing a Diels-Alder reaction, what are the products?

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

What is the temperature of one mole of helium gas at stp?

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?