Is A tomato smells rotten a chemical
reaction

How many miles of water are produced if 5.43 mol pbo2 are consumed

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 biosphere of the earth is made up of what compound? organic or inorganic?