The mother of a child with a possible food allergy asks the nurse for information about how to test for it. which response by the nurse would be most appropriate?

Several billion years ago which gas was the least prevailant in the atmosphere

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?

When sodium chloride dissolves in water the sodium cholride dissociates into?