comets, astroids oort clouds which surround the kuiper belt
Barium, it's an earthy alkaline metal it's atomic number is 56
Answer:
Option C. 4.03 g
Explanation:
Firstly we analyse data.
12 % by mass, is a sort of concentration. It indicates that in 100 g of SOLUTION, we have 12 g of SOLUTE.
Density is the data that indicates grams of solution in volume of solution.
We need to determine, the volume of solution for the concentration
Density = mass / volume
1.05 g/mL = 100 g / volume
Volume = 100 g / 1.05 g/mL → 95.24 mL
Therefore our 12 g of solute are contained in 95.24 mL
Let's finish this by a rule of three.
95.24 mL contain 12 g of sucrose
Our sample of 32 mL may contain ( 32 . 12) / 95.24 = 4.03 g
In bleaching a stain, you see that the stain fades, and doesn't come back, which indicates that it has undergone a change.
Buring a match, you would see the ashes, and that it cannot be it's original substance again.
In rusting of an iron nail, the nail cannot be unrusted easily, which indicates that it has been through a chemical reaction.
Lower temperature
Let's verify
- Pressure=P
- volume=V
- Temperature=T
As per Boyles law
As per Charles law
So
At higher altitudes lower the pressure so lower the temperature