the letters x, y, and z represent different elements. y has the greatest electronegativity and z has the lowest electronegativity. would you expect this hypothetical molecule to be polar or nonpolar?

What three things determine the shape and size of a puddle when water is poured out onto a surface

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

What substance has a mass of 9.5g and volume of 2.1cm^3