What volume of gold would be equal in mass to a piece of copper with a volume of 116 mL? The density of gold is 19.3 g/mL; the density of copper is 8.96 g/mL.

The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.

Liv sheldon given the balanced equation for an organic reaction: c2h2 + 2cl2 → c2h2cl4 this reaction is best classified as *

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices