A 123.04 sample of an unknown substance was heated from 25oC to 40oC. In the process, the substance absorbed 5653 J of energy. What is the specific heat of the substance.

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

Why dose heating increase the speed at which a solution dissolved in water

The activation energy for this reaction is 75 kj·mol–1. the enzyme catalase (found in blood) lowers the activation energy to 8.0 kj·mol–1. at what temperature would the non-catalyzed reaction need to be run to have a rate equal to that of the enzyme-catalyzed reaction at 25°c?