Un ion de un átomo con número de oxidación −1 con-
tiene 17 protones y 18 neutrones. Indica sus números
atómico y másico, así como la cantidad de electrones
que contiene.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.

Which of the following is true about the speed of light? it depends on the wavelength.