What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl? -pcl5-pcl3-p2cl10-p2cl5

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

What must occur for air masses to form fronts