Which of these does NOT involve a chemical change?
A. Cocaine causes the release of norepinephrine from nerve cells.
B. Red delicious apples taste sweet.
C. Antacids often help an upset stomach.
D. Mercury is used in barometers because it has a high density.
Answer:D
Which of these does NOT involve a chemical change?
A. Cocaine causes the release of norepinephrine from nerve cells. B. Red delicious apples taste sweet. C. Antacids often help an upset stomach. D. Mercury is used in barometers because it has a high density.