1. Is this reaction endothermic or exothermic?
2. What is the reactant(s)? X2 +Y2
3. What is the energy of the reactants?
4. What is the product(s)?
5. What is the energy of the products?
6. What is the activated complex?
7. What is the energy of the activated complex?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?