Should the mass be the same for each solute tested?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Why is nh3 classified as a polar molecule

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.