1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jonny [76]
3 years ago
8

Why do some substances dissolve in water, but other substances do not?

Physics
1 answer:
Alexxx [7]3 years ago
5 0

Answer:

It has to do with the polairity of said molelule. If you have vegetable oil, for example, it will not disolve in water because the oil is a non-polar compound, unlike water which is polar. The bond dipoles and differences in electronegetivity in the molecule results in this.

You might be interested in
A 5.0-kg bar of lead is placed inside a 12-L chamber filled with helium gas. The temperature of the lead and helium is the same.
Pavlova-9 [17]

As the temperature of the lead and helium is the same. Thus the average kinetic energy is also the same for lead and helium.

Reason:

It is given that a 5.0-kg bar of lead is placed inside a 12-L chamber filled with helium gas. The temperature of the lead and helium is the same. It is required to compare the average kinetic energy of the lead atoms and helium atoms.

The average kinetic energy is calculated as, K=\frac{3}{2} \frac{R}{N} T.

Here K is the average kinetic energy,  R is the gas constant, N is the Avogadro's number, and T is the temperature.

As the temperature is the same for both lead and helium. As a result, the average kinetic energy is also the same for lead and helium.

Learn more about average kinetic energy here,

brainly.com/question/1599923

#SPJ4

4 0
2 years ago
A mass M is hanging from a rope of length L and mass m. A student gives the mass a quick horizontal shake to set up a wave which
disa [49]

Answer:

Explanation:

Expression for velocity of wave produced in a hanging wire can be given  as follows

Velocity v = \sqrt{\frac{T}{m} }

where T is tension in wire and m is mass of wire per unit length.

In the given case

T = Mg + mg

= Mg

neglecting weight of rope

mass of the rope per unit length

= m / L

Velocity of wave

= \sqrt{\frac{Mg}{\frac{m}{L} } }

= \sqrt{\frac{MgL}{m} }

4 0
3 years ago
2. a) If a bottle was filled with a liquid, tightly
kow [346]

Answer:

bottle might burst

Explanation:

because liquid inside will expand and exert pressure on walls of the bottle.

6 0
3 years ago
Any example of acceleration related to human body??? <br> answer quickly plz :)
Hitman42 [59]

Answer:

Acceleration stress, physiological changes that occur in the human body in motion as a result of rapid increase of speed. ... A force of 3 g, for example, is equivalent to an acceleration three times that of a body falling near Earth.

4 0
3 years ago
How has technology influenced theories over time?
Contact [7]
Better technology is helping us because we can see more stuff like the microscope we able to make assumptions based on what we saw.  
7 0
4 years ago
Other questions:
  • A Ferris wheel is a vertical, circular amusement ride with radius 6.0 m. Riders sit on seats that swivel to remain horizontal. T
    15·1 answer
  • A lever is placed on a fulcrum. A rock is placed on the right end of the lever and a downward (counterclockwise) force is applie
    10·1 answer
  • What type of simple machine is a slide shovel broom screwdriver
    14·2 answers
  • When the person is skating from the bottom of the track back up to the top, her potential energy _______ . When the person is sk
    7·1 answer
  • Sunlight reflected off a mirror you are holding is focused at a point 330 mm in front of the mirror.
    14·1 answer
  • A police car moving at 36.0 m/s is chasing a speeding motorist traveling at 30.0 m/s. The police car has a siren that emits soun
    15·1 answer
  • ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring w
    8·2 answers
  • g Determine the magnetic field midway between two long straight wires 2.0 cm apart in terms of the current I in one when the oth
    10·1 answer
  • 2. If you are 5'10" tall, that is, 5 feet 10 inches, what is your height in meters? (2 54 cm = 1.00 in)
    11·2 answers
  • What would happen if the atmosphere consisted of pure oxygen.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!