The inventor of the cotton gin in Eli Whitney
Answer:
There are 6.024 grams of sodium hydroxide in the solution.
Explanation:


Moles of sodium hydroxide = n
Volume of sodium hydroxide solution = 251.0 mL = 0.251 L
Molarity of the sodium hydroxide = 0.600 M

Mass of 0.1506 moles of NaOH :

There are 6.024 grams of sodium hydroxide in the solution.
Lichens are an examples of Symbiosis
Answer: Option (a) is correct.
Explanation:
Molecules of sugar given = 
According to Avogadro's number it is known that 1 mole contains
.
Therefore, calculate the moles of sugar present in the sample as follows.
Number of moles = 
= 0.25 mol
Thus, the moles of sugar present in the sample is 0.25 mol.
Answer:
wind
Explanation:
it would be naturally caused by the pressure