Por qué es importante, para analizar el movimiento de un cuerpo, definir primero un sistema de referencia?

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?