When producing hydrogen iodide, the energy of the reactants is 581 kJ/mol, and the energy of the products is 590 kJ/mol. The equation is shown. H₂ + I₂ → 2HI

What is the total energy of the reaction? Is this an endothermic or exothermic reaction?

–9 kJ/mol, exothermic

9 kJ/mol, exothermic

9 kJ/mol, endothermic

–9 kJ/mol, endothermic

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.

Listed following are various physical situations that describe how light interacts with matter. match these to the appropriate category. 1) transmission? -visible light meets clear glass -visible light does not pass through a black wall -red light hits a red sweatshirt -light comes from your computer screen -cell phone signals pass through walls -blue light hits a red sweatshirt -white light hits a white piece of paper -light comes from a light bulb