Out of the available answers, the most likely correct would be that
eventually everyone must sleep due to our need for mental rest. However,
it is not as simple as this, as all of the processes implicated with
mental rest (including the restoration of biological rhythms as
mentioned in an alternative answer) cannot necessarily be summed up in
this way.
Ions are electrons neutrons and protons like it's a way of saying them without being specific and calling them electrons or protons or anything like that
Answer:
0.319 M
Explanation:
M1V1 = M2V2
M1 = 0.55M
V1=145 mL = 0.145 L
V2 = 250mL = 0.250L
M2 = M1V1/V2=0.55x0.145/0.250 = 0.319 M