Question

question 28 of 30 which of the following is an important difference between chemical reactions and nuclear reactions? a. new substances are not created in nuclear reactions. b. mass is not always conserved in nuclear reactions. c. new kinds of atoms are created in chemical reactions. d. mass is not always conserved in chemical reactions.

Explanation:

Chemical reactions involve electron rearrangement, conserving mass and atom types. Nuclear reactions involve nuclear changes, creating new atoms and converting mass to energy, so mass isn't always conserved.

Answer:

B. Mass is not always conserved in nuclear reactions.