List three signs that could make you think a chemical reaction might be taking place

3 signs that indicate a chemical reaction is taking place are:

1.  Temperature change
2. Color change (rusting)
3. Release of gas bubbles
Others would be the formation of precipitate, the release of energy, or change in odor.

Hope this helped u!!

~TRUE BOSS

Change in color, change in temperature , production of light, production of gas , Formation of a precipitate, any of those will work

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

Blindness is your answer