Explanation:
Physical property
1- Water is colorless and odorless in its pure form
Human use of land has negative impacts. Human activities contribute to the erosion and pollution of beaches. Deforestation of land can also lead to desertification and a loss of biodiversity.
One of the most powerful laws in physics is the law of momentum conservation. ... For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.
<span>1 liter of drink contain water = 15%
12l of drink contain water = 15 %
12l of drink contain water at 15% = 1.8l
12l of drink contain water at 50% = 6l
Water to add in 15% water drink = 6l – 1.8l = 4.2l
After adding 4.2l of water in 12l 15% water drink, we get 50% water drink.</span>
Answer: The freezing point of 3.46 gram of a compound X in 160 gram of benzene is 
Explanation:
The relation of density and molar mass is:
where
d = density = 3.27 g/ L
P = pressure of the gas = 773 torr = 1.02 atm (760 torr = 1atm)
M = molar mass of the gas = ?
T = temperature of the gas = 
R = gas constant = 
The relation of depression in freezing point with molality:
= depression in freezing point = 
= 
= freezing point constant = 5.1
m = molality = 
Thus the freezing point of 3.46 gram of a compound X in 160 gram of benzene is
