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Bingel [31]
3 years ago
11

A valid lewis structure of __________ cannot be drawn without violating the octet rule. a valid lewis structure of __________ ca

nnot be drawn without violating the octet rule. sbf3 if3 so42− pf3 nf3
Chemistry
1 answer:
Oxana [17]3 years ago
5 0
A valid Lewis structure of IF3 cannot be drawn without violating the octet rule.

Answer: IF3 (Iodine Trifluoride)

This is because, I (Iodine) and F (Fluorine) both have odd number of valence electrons (7) which also means that there are too many valence electrons in the valence shell.
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Water flows over Niagara Falls at the average rate of 2,400,000 kg/s, and the average height of the falls is about 50 m. Knowing
Andre45 [30]

Answer:

Power, P=1.176\times 10^9\ W

No of bulbs = 78400000

Explanation:

We have,

Water flows over Niagara Falls at the average rate of 2,400,000 kg/s, it mean it is mass per unit time i.e. m/t.

It falls from a height of 50 m

The gravitational potential energy of falling water is given by :

P = mgh

Power is equal to the work done divided by time taken. So,

P=\dfrac{W}{t}\\\\P=\dfrac{mgh}{t}\\\\P=\dfrac{m}{t}\times gh

So,

P=2400000\times 9.8\times 50\\\\P=1.176\times 10^9\ W

Let there are n bulbs that could power 15 W LED. It can be calculated by dividing the power by 15. So,

n=\dfrac{1.176\times 10^9}{15}\\\\n=78400000\ \text{bulbs}

It means that the number of bulbs are 78400000.

3 0
3 years ago
When someone’s immune system overreacts to something harmless it’s called:
ruslelena [56]
I feel like it would be c
5 0
3 years ago
Read 2 more answers
Determine what forces are present in this situation : an elevator is rising at a constant speed; the elevator is the object in t
alexandr1967 [171]
The correct answer for the given question would be option A. The forces that are present in the given situation above which is an elevator rising at a constant speed, are gravity and tension. Gravity is the force that pulls all matter together. Tension is the <span>pulling force transmitted axially. Hope this is the answer that you are looking for.</span>
7 0
3 years ago
Read 2 more answers
Elements:
brilliants [131]
Elements:
• atom
• cannot
• Periodic Table

Compounds:
• atoms
• chemically
• cannot


Mixtures:
• elements or compounds
• homogeneous
• heterogeneous
8 0
2 years ago
Salt from evaporated seawater has been formed from
e-lub [12.9K]

Answer:

a

Explanation:

its formed from sodium and sodium metal is produced by electrolysis of dry molten sodium chloride.

8 0
2 years ago
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