2 years ago

What is vsepr theory, and how can it be used to predict molecular shapes?

1 answer:

7 0

VSEPR theory (known as Valence Shell Electron Pair Repulsion ) endeavors to explain/predict the shape and geometry of molecules. The theory postulates that atoms in a molecule take a position in space (within the molecule) that reduces the repulsion of the individual atom’s electron clouds so the molecule can achieve the most stable state.

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If you push on a wall with 200n with what forth with the wall push back

sweet-ann [11.9K]

According to newtons law every action has a equal reaction therefore it will push back 200n aswell

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3 years ago

A vial containing radioactive selenium-75 has an activity of 3.0 mCi/mL. If 2.6 mCi are required for a leukemia test, how many m

oksian1 [2.3K]

Answer : The $866.66\mu L$ must be administered.

Solution :

As we are given that a vial containing radioactive selenium-75 has an activity of $3.0mCi/mL$ .

As, 3.0 mCi radioactive selenium-75 present in 1 ml

So, 2.6 mCi radioactive selenium-75 present in $\frac{2.6mCi}{3.0mCi}\times 1ml=0.86666ml\times 1000=866.66\mu L$

Conversion :

$(1ml=1000\mu L)$

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2 years ago

How many grams of n2f4 can be produced from 225g f2?

3241004551 [841]

The answer is 615.91 grams of <span>n2f4

Solution:
225g F2 x [(1molF2)/(38gramsF2)] x [</span>(1molF2)/(1molN2F4)] x [(104.02 grams N2F4)/(1molN2F4)]
=615.91 grams

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3 years ago

Animal and Plant Cells Worksheet Word

yanalaym [24]

Answer:

u didnt give a worksheet

Explanation:

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The melting point and freezing point of silver are 960 degrees celsius and 2162 degrees celsius, repectively. What is the freezi

Kay [80]

Answer: 960 degrees celsius

Explanation:

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