In a chemical equation, the symbol that takes the place of the word yields reacts is a(n) Example: HCI + KOH-KCI + H2O
O equal sign.
O coefficient.
O plus sign.
O arrow.

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.