Which statement is true if the ΔH_rxn of a reaction is positive?

What would likely happen if you were to touch the flask in which an endothermic reaction?

2 Mg(s) + O₂(g) → 2 MgO(s) ΔH = −1204 kJ

Identify which of the following is true for the reaction N₂(g) + 3 H₂(g) → 2 NH₃(g)

Which has greater energy in an exothermic reaction, the reactants or the products?

What would likely happen if you were to touch the flask in which an endothermic