True or false during decomposition nitrogen gas is changed into nitrogen compounds

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

What substance has a mass of 9.5g and volume of 2.1cm^3

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.