Answer:
A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. Chemical changes occur through the process of chemical reactions, and the resulting substances have different properties because their atoms and molecules are arranged differently.
Explanation:
Answer:
A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity. The rotor is attached to the turbine shaft and rotates at a fixed speed.
Explanation:
Hope that helps
Answer:
0.0395 mol NaCl
Explanation:
¡Hola!
En este caso, es necesario para nosotros considerar que las relaciones masa-mol se desarrollan teniendo en cuenta las masas molares de los compuestos involucrados en el sistema. Ahora, dado que este sistema se compone de NaCl, cloruro de sodio como sal de mesa, es posible saber que la masa molar de este es alrededor de 58.44 g/mol.
De esta manera, las moles en 2.31 g se calculan como sigue:
¡Saludos!
N=m/M
= 241 g /159.69 mol/g
=1.50917