Answer:
bruh what is the question
Explanation:
there is no question ;-;
Certain fish species use bioluminescence as a form of "night light". Some use it for communication. Certain species of crustaceans send out coded signals to others of their own kind during mating season. Other creatures use bioluminescence as a trap.
The answer is I have no idea really
Answer:
20 km
Explanation:
he walks 10 km + another 10 km so 20 :)
Answer:
Concentration of original solution = 1.66
Explanation:
We know that
We have given concentration of NaOH = 0.1678
Volume of NaOH = 19.88 mL = 0.01988 L
So moles of NaOH = volume x concentration of NaOH
= 
Moles of 
in 10 mL of diluted solution = 1/2 x moles of NaOH
= 
x 0.00333 = 0.00166 mol
Moles of in 25 mL of original solution
= moles of H2SO4 in 250 mL of diluted solution
= 
x 0.00166 = 0.0415 mol
Concentration of original solution = 
= 
