Archie wanted to find out if Jughead's crown was made of pure gold (Betty and Veronica were able to remove the crown while he was sleeping and brought it to Archie.) First, he measured its mass: 432.0g. Next he measured its mass when the crown was underwater: 352 g. What is the volume of the crown?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next