When a metal reacts with an acid, various indicators will be present to show a
change in chemical composition is taking place. Examine the reaction below:
Mg (s) + HCI (aq) --> MgCl₂ (aq) + H₂(g) + energy
Which of the following is/are indicators present based on the reaction above? Check
all that apply.
A. color change occurs
B. precipitate forms
C. heat forms
D. gas bubbles form
E. odor change occurs
F. state change occurs
G. aqueous solution forms
H. water forms