What would be the first thing you would do if you are burned by a chemical while performing a lab experiment?

In the water cycle , when does water undergo a chemical change

What is the period of cell life when it is conducting

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.