How many molecules are in a 0.10 mole sample of SO2

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?