what mass of Fe2O3 is produced in the reaction in the table above mass of reactants= 223.4 g Fe+96.0 g O2. and mass of products=? g Fe2O3

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

How many neutrons does a atom of cobalt have?