A gas has a pressure of 7 atm at 227°C. What will its pressure be at 27°C? The volume and amount of gas is constant. Hint: Convert temperature to Kelvin before calculating (°C + 273 = K)

Compare and contrast the bohr model and the electron cloud models of the atom.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

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?