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elena-s [515]
3 years ago
12

Consider the model of a sodium atom. An orange circle labeled upper N a is surrounded by three concentric circles. The innermost

ring has dots at the north and south positions. The next ring has eight dots, evenly spaced, with dots aligning with those in the inner ring. The outermost ring has one dot at the north position. Which feature does the model show accurately?
A) the size of the electrons in different shells
B) the shapes of the orbitals in different shells
C)the distribution of electrons in different shells
D)the orientation of the orbitals in different shells
Chemistry
2 answers:
alex41 [277]3 years ago
6 0

Answer:

C would be the answer.

Explanation:

Nuetrik [128]3 years ago
6 0

Answer:

C.

Explanation:

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A liquid of density 1290 kg/m 3 flows steadily through a pipe of varying diameter and height. At Location 1 along the pipe, the
Gelneren [198K]

Answer:

114 kPa

Explanation:

By Bernoulli's equation when a fluid flows steadily through a pipe:

P + ρ*g*y + v² = constant in the pipe, where P is the pressure, ρ is the density of the fluid, g is the gravity acceleration (9.8 m/s²), y is the high, and v the velocity.

By the continuity equation, the liquid flow must be constant in the pipe, and then:

A1*v1 = A2*v2

Where A is the area, v is the velocity, 1 is the point 1, and 2 the point 2 in the pipe. The are is the circle area: π*(d/2)². So:

π*(0.105/2)²*9.91 = π*(0.167/2)²*v2

0.007v2 = 0.027

v2 = 3.9 m/s

Then:

P1 + ρ*g*y1 + v1² = P2 + ρ*g*y2 + v2²

ρ*g*y1 - ρ*g*y2 + v1² - v2² = P2 - P1

ρ*g*Δy + v1² - v2² = ΔP

ΔP = 1290*9.8*9.01 + 9.91² - 3.9²

ΔP = 113,987.42 Pa

ΔP = 114 kPa

8 0
3 years ago
How is an electron orbital similar to a parabola?
AVprozaik [17]

Answer:

Explained below.

Explanation:

First of all, the orbital path of electron is mostly parabolic in electric field.

In an electric field, electrons behave very similar to a projectile. Thus, Electrons have a parabolic path in an electric field simply because the speed of the electrons in a direction which is perpendicular to the electric field is constant since there is no force. Therefore, there will be no acceleration along that perpendicular direction. However there will be an acceleration that is constant in the direction of the electric field which makes it act in a similar manner to a projectile under gravity.

5 0
3 years ago
:answer question number 3
Tcecarenko [31]
True !! size dependent properties state is only one of the many physical properties of matter some physical properties such as massive value depending on the size or the amount measures of these properties very depending on how much matter is in a sample.
5 0
3 years ago
Please respond to this question
ki77a [65]

Answer:

Explanation:

im not 100% sure but maybe d

3 0
3 years ago
If a solution contains less than the maximum amount of solute that it could dissolve at that temperature, the solution would be
tamaranim1 [39]

The solubility of a substance tells us the amount of solute that is capable of dissolving a given amount of solvent at a given temperature. We speak that a solution is.

Now, if the amount is less than the statement says, it will be an unsaturated solution.

When the amount is greater, the solution is supersaturated and a precipitate of solute will form in the solution.

According to what has been explained, the solution described by the statement is an unsaturated solution.

Answer: Unsaturated

4 0
1 year ago
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