What do we call the type of reaction that occurs inside a battery? (¿Cómo le llamamos al tipo de reacción que ocurre dentro de una batería?) Es urgenteee

An engineering team designs a new rocket that is faster and lighter than any other model being produced. however, the materials end up being so expensive that no company can afford to buy them. which step of the engineering process should have addressed this problem? a. know the background. b. evaluate the results. c. identify a need. d. do the work.

As you move from right to left on the periodic table the atomic radius fill in the blank

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry