The pressure exerted on a sample of gas is 735 mm hg with a volume of 375 ml and a temperature of 25 degrees celsius. what would the pressure of the gas be if the temperature was reduced to standard temperature and the volume was expanded to 500.0 ml?

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.

Lord kelvin described the concept of absolute zero temperature and the laws relating to the change of thermal energy during chemical reactions what type of chemist would he be considered today

Amodel of an atom is shown below. which element is represented by this model of an atom? boron, carbon, neon, or sodium?