A graduated cylinder has 20 mL of water in it. If a stone is added to the graduated cylinder, the water level rises to 45 mL. If the stone weighs 75.0 grams, what is the density of the stone?

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li

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

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element