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kicyunya [14]
3 years ago
9

What two theories can be used to predict molecular geometry?

Mathematics
1 answer:
KIM [24]3 years ago
5 0
Valence shell electron pair repulsion (VSEPR<span>) </span>theory<span> is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. It is also named the Gillespie-Nyholm </span>theory<span> after its two main developers.

</span>The London theory has much similarity to the quantum mechanical theory of light dispersion<span>, which is why London coined the phrase "dispersion effect." In physics, the term "dispersion" describes the variation of a quantity with frequency, which is the fluctuation of the electrons in the case of the London dispersion.</span>
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AC =15 cm B =68 degrees c=24 degrees what is the measure of BC
Natasha_Volkova [10]

the question is not very clear.......

4 0
3 years ago
56 points for whoever answers correctly !
vladimir2022 [97]

We need to use what we know about rectangles to get:

1)

  • Total length = 2*W + 8ft
  • Total width = W + 8ft

2) area = 2*W^2 + 24ft*W + 64ft^2

<h3>Working with rectangles:</h3>

We know that rectangles are defined by two measures, width W and length L.

Here we do know that the length of the pool is twice the width, and the width is W, then the length of the pool is:

L = 2*W

And we also have a sidewalk of 4ft all around the pool, now we want to get:

1) The total length and the total width.

This will be equal to the length/width of the pool <u>plus twice the width of the sidewalk</u> (we add it twice because is in both ends) then we have:

  • Total length = L + 2*4ft = 2*W + 8ft
  • Total width = W + 2*4ft = W + 8ft

2) Now we want to get an expression for the total area of the pool.

Remember that for a rectangle the area is just the product between the width and the length, so to get the area of the pool with the sidewalk we just take:

area = (total length)*(total width)

area = (2*W + 8ft)*(W + 8ft) = 2*W^2 + 3*W*8ft + 64ft^2

area = 2*W^2 + 24ft*W + 64ft^2

This is the equation that gives the total area as a function of W, the width of the pool.

If you want to learn more about rectangles, you can read:

brainly.com/question/17297081

6 0
3 years ago
A car travelled 216km at an average speed of 48km/h.On the return journey the average speed increased to 72km/h.Calculate the av
mel-nik [20]

Answer:120km/hr

Step-by-step explanation:

3 0
3 years ago
Please help it is one question please please and give explanation!!
Dafna1 [17]
It is a i think sorry if wrong
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3 years ago
1. Find the volume of a cone with a height of 4.8 m and a diameter of 8.4 m.
andrey2020 [161]

Answer:

no

Step-by-step explanation:

ok

3 0
3 years ago
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