A solid ice cube absorbs 151.7 J of energy as it warms from 0.00°C to 4.70°C. What is the mass of the ice cube?

74.7 g

351.2 g

15.9 g

65.5 g

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

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

Just on number 2 (all parts), and if you do answer explain in detail