​¿Cuál es la concentración porcentual en peso (masa/masa) de una solución que contiene 225 gramos de NaCl disueltos en 1.550 gramos de agua? Ayuda porfis!

Complete this brønsted-lowry reaction placing each product by its appropriate label. hso4- + hcn

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.