D. amu
amu stands for atomic mass unit
Answer : The retention time is, 20 min
Explanation :
Retention time : It is defined as the amount of time a compound spends on the column after it has been injected.
Formula of retention time is:

Given:
Distance from injection point to center of peaks = 10 cm
Chart recorded speed = 0.5 cm/min
Now put all the given values in the above formula, we get:

Retention time = 20 min
Thus, the retention time is, 20 min
Answer:
I believe that it would be the third option down.
Explanation:
The thermal energy is in constant motion in the COOLER room, and when the desired temperature in the room is reached, it stops.
Answer:
HCl
Explanation:
is a strong acI'd,,By contrast a weak acid like acetic acid (CH3COOH) does not dissociate well in water