Bleaching hair i a physical change i think; it washes the pigments out.
i hope this helps (;
Answer:
The name of the molecule which is given below is 2-pentene.
Explanation:
Alkenes are the organic compounds which are composed of carbon and hydrogen atoms, in which double bond is present.
In the given diagram:
Each corner and joints shows the carbon atoms and number of carbon atoms in it is 5.
One double bond is present in the 2nd position.
So the compound is 2 pentene.
Hence, 2 pentene is the name of the compound.
The concentration of diluted solution is found to be 0.421 M
<u>Explanation:</u>
It is given that a stock solution (400 ml) should be diluted to 750 ml, we need to find the concentration of the diluted solution using the Law of Volumetric analysis,
V1M1 = V2M2
V1 being the volume of the stock solution = 400 ml
M1 being the molarity of the stock solution = 0.789 M
V2 being the volume of the diluted solution = 750 ml
M2 being the molarity of the diluted solution = ?
Now we have the molarity of the diluted solution by rearranging the above equation as,
M2 = 
Now plugin the values as,
M2 = 
= 0.421 M
So the molarity of diluted solution is found to be 0.421 M.
Answer: D
Explanation:
D is the best explanation:
Asteroids approaching the Earth from any direction get pulled toward the Earth.
Answer:
2) 0.109 mol
Explanation:
The density of butan-1-ol is 0.8098g/mL. And its molar mass is: 74.121g/mol.
First, we need to convert volume of butan-1-ol to mass:
10.0mL * (0.8098g / mL) = 8.098g of butan-1-ol
Now, we need to convert these grams to moles using molar mass:
8.098g * (1mol / 74.121g) = 0.109 moles of butan-1-ol
Right answer is:
<h3>2) 0.109 mol
</h3>
