What is gadolinium

And what would be a superpower that relates to it

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams

What does an electron configuration for an atom relate to the atoms placement on the periodic table