Matter can undergo chemical reactions and nuclear reactions, Which statement is true for both types of reactions?
A. The reactants have the same numbers of atoms as the products,
B. They conserve mass.
C. They involve breaking and making chemical bonds,
D. They have reactants and products,

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?