Answer:
The substance which responds to the change in the concentration of the hydronium ions in solution by changing its color is known as an indicator.
The SI base units for length is meter (m) and for time is seconds (s).
The given ratio is 
Converting mm/s to m/s as:
Since, 1 mm/s = 0.001 m/s
So, 
Since, zeroes to the left side of the non-zero number are not significant hence, the evaluation of to three significant figures and answer in SI units is 
.
Answer:
Flerovium has 4 valence electrons in its outer shell. So, you did it right. All the dots are in the right place. Just fill in the dots and you should be good.
Hope that helps.
The pressure of a cloud varies with depth because of volume.
The substance of 2 Naoh contains 6 atoms
