Solution:
By the following ways the polar molecule doesn’t mix with non-polar molecule
Polar molecules have a portion of their molecule which, relative to the rest of the molecule, is more negative.
Water, for example, has a bent, or V-shape, due to the 2 lone electron pairs on oxygen. This makes the oxygen end more negative than the hydrogen end. This negative area allows for hydrogen bonding between that molecule and other molecules which are also polar.
Non-polar molecules don't have a portion of the molecule which is more negative than the rest. An example of this is a hydrocarbon, like butane. Because there is no relatively negative region to the molecule, it cannot partake in hydrogen bonding and therefore does not mix with polar molecules.
Thus we can conclude that Polar mixes with polar; non-polar mixes with non-polar.
Answer:
A. 1 = 3 - 2
Explanation:
What defines an expression?
expression - An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division.
So if we look at the letter options we can see that A is the best choice.
To solve this we assume that the gas inside the balloon is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant pressure and number of moles of the gas the ratio T/V is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:
T1 / V1 = T2 / V2
V2 = T2 x V1 / T1
V2 =90 x 20 / 360
<span>V2 = 5 L</span>
Answer:
Sound travels more quickly in solids.
Explanation:
That’s because it is the collisions of particles that transmit the energy of the sound waves.
In solids, the particles are packed as tightly as they can get. The energy of the collision passes from one particle to another quite rapidly. For example, the speed of sound in steel is about 6000 m/s (22 000 km/h).
The particles in liquids are further apart, so it takes longer for the sound energy to get from one particle to the next. The speed of sound in water is about 1500 m/s (5400 km/h).
The particles in a gas are relatively far apart, so it takes time for one particle to get to another. The speed of sound in air is about 340 m/s (1200 km/h).
