According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants? a there is no relationship. b the mass of the products is sometimes greater. c the mass of the reactants is greater. d the masses are always equal.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.