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elena-14-01-66 [18.8K]
3 years ago
13

What is an example of how enginers contrbiuted to society

Chemistry
1 answer:
SpyIntel [72]3 years ago
8 0

Answer:

Engineers changed the world, such as building houses, bridges, and cars.

Please rate it the brainlist if this helped you and let me know if you have any questions, thanks

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What geometry does VSEPR predict for the central atom in NCl3
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Answer:

Tetrahedral electron geometry and trigonal pyramidal molecular geometry.

Explanation:

The Lewis structure is shown in Figure 1.

The central N atom has three bonding pairs and one lone pair, for <em>four electron groups</em>.

VSEPR theory predicts a tetrahedral electron geometry with bond angles of 109.5°.

We do not count the lone pair in determining the molecular shape.

The molecular geometry is trigonal pyramidal (see Figure 2).

5 0
3 years ago
Explain why the column of a fractional distillation apparatus should be aligned as near to the vertical as possible
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<span><span>The column of a fractional distillation apparatus should be aligned vertical to get better separation because the column is essentially longer. It will prevent channeling in the column. </span>Therefore column efficiency will be higher if it is as vertical as possible instead of tilted.<span> Distillation is a process used to separate a mixture of two (or more) components. In a typical </span>fractional distillation, a liquid mixture is heated in the distilling flask and the process begins.</span>
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A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N. The carriage has ____
QveST [7]

Answer:

B

Explanation:

The carriage has potential energy

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3 years ago
If an atom with a mass of 47 amu has 22 neutrons, what atom is it?
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Answer:

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At Mass - No neutrons = Atomic Number = #protons in nucleus

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Who want to play among us​
lesya [120]

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Meh i want to play

UwU

:)

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