“Titration is a common lab method in chemical analysis. It is the slow addition of one solution of a known concentration (called a titrant) to a
known volume of another solution of unknown concentration until the
reaction reaches neutralization, which is often indicated by a color
change." No heat source is involved. Given the information above, which
safety precaution should be observed when titrating NaOH into a beaker?
NaOH is a solution that is caustic (able to burn or corrode organic tissue).
Skin contact should be avoided.
A. Wear protective eyewear.
B. Wear heat-protective gloves.
C. Avoid open flames
D. Only work in lab groups of 3 or 4.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.