We participate in the every time we breathe. tectonic nitrogen phosphorus carbon-oxygen

Select all that apply. when the products of a reaction have less energy than the reactants: the reaction is exothermic. the reaction is endothermic. the reactants lost internal energy. the change in enthalpy is positive.

Question 5 of 52 pointswhich of the following factors contributed most to the expansion of both thepersian and greek empires?

Draw the structures of two different compounds that have the composition ch3no2. all three h atoms must remain bonded to the c atom and both o atoms must remain bonded to the n atom.. draw the molecules by placing atoms on the grid and connecting them with bonds. include all hydrogen atoms and nonbonding electrons.