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2 years ago

What is the relationship between layering of fluids and density?

1 answer:

7 0

Density of a liquid determines how it will layer (heaviest to lightest). If the liquid is least dense it will float to the bottom. Layers will remain separated because each liquid is actually floating on top of the more dense liquid beneath it.

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A big league hitter attacks a fastball!! The ball has a mass of 0.16 kg it is pitched at 38 m/s after the player hit the ball it

kap26 [50]

82 m/s was put on the ball

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3 years ago

Draw the Lewis Structure for H2O.

GalinKa [24]

Answer:

Structure has been shown below

Explanation:

In a Lewis structure, least electronegative atom is taken as central atom (except H)
Total valence electrons of constituting atoms are used to construct Lewis structure
A bond between two atoms are represented by a horizontal line or a dotted line (two dots).
Spatial rearrangement of atoms are neglected in Lewis structure.
H has one valence electron and O has six valence electrons. So, total valence electrons in $H_{2}O$ are 8
Lewis structure of $H_{2}O$ has been given below.

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3 years ago

2. Describe How are the two forms of energy<br> carried by waves and matter related?

Kazeer [188]

Answer:

the energy of matter implies the motion of masses and the energy of the wave has no moving masses

The energy of the particles (matter) is the ability to do some work, therefore the energy can be of motion in the form of kinetic energy or in a configuration of the system called potential energy, the sum of these two energy is constant .

The wave is formed by a disturbance of the medium by matter, therefore for the formation of the wave matter supply energy, for example: in the form of movement, in the form of fluctuation of electric or magnetic field, etc.

The waves after being formed can move away from the matter that formed them, transporting the energy that alternately has kinetic and potential energy, but the total energy is constant.

Therefore the energy in matter is due to the movement of the same and the energy in the wave does not require the movement of matter, so it is a more efficient way of doing work.

In conclusion, the energy of matter implies the movement of masses and the energy of the wave has no moving masses.

7 0

2 years ago

Sodium acetate spontaneously crystallizes out of a supersaturated solution upon standing or upon the addition of a seed crystal.

AlekseyPX

Answer:

Option (c) is correct.

Explanation:

According to 2nd law of thermodynamics, every spontaneous process is associated with increase in entropy ( $\Delta S>0$ ).

As sodium acetate crystallizes out spontaneously therefore it is associated with $\Delta S>0$ .

During crystallization, bond formation takes place which results evolution of heat. In other words, crystallization phenomenon is exothermic ( $\Delta H$ ).

So, the given crystallization process renders the following thermodynamic quantities- $\Delta S>0$ J/K and $\Delta H$ J

Option (c) is correct.

6 0

2 years ago

4 outer planets in order

Gwar [14]

Jupiter, Saturn, Uranus, Neptune, Jovian... is your answer.

8 0

2 years ago

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