Cual es el reactivo limitante y en exceso de 4sb+3o2-2sb2 o3​

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Why are people not able to scuba dive in the deep part of the ocean