How would you calculate the number of nanometers in 8.1 cm

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

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?