8. Por qué se dice que la fotosíntesis y la respiración comprenden una serie de reacciones de óxido-reducción?

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

answer7,570,82356 cubic centimeters;