16. Which two elements on the periodic table are in the same period? A. F and Cl
B. Se and Te
C. Sn and Rb
D. K and Ba

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?