News on Youtube Aug 26 2017

It is a very, very memorable day for the company, and a huge milestone for all of the employee-owners

at Border States.

We will be building a facility that will cost about $45-46 million.

It's going to be 120,000 square feet, with three stories.

On day one, we'll have a capacity for 540.

We're proud to call North Dakota home.

We are 100 percent employee-owned.

We are one of the largest ESOP companies in the country.

We are the seventh-largest electrical distributor in North America.

We have grown to over 90 branches with 2,300 employee-owners across 18 states.

And, we are growing.

On Monday, we're going to acquire a company headquartered in Nebraska.

We'll add another 19 branch locations and another 250 employee-owners.

We have over 600 employees here in North Dakota.

We have over 400 employees here in Fargo.

We have over 330 employees in what we call our corporate office, or our Branch Support

Center.

In our Branch Support Center, we have a lot of those traditional corporate functions like

IT, HR, finance, marketing, legal.

And, these are great jobs.

We have engineers, we have CPAs, we have data scientists, we have full-time writers, we

have procurement specialists, logistics specialists.

Great jobs and great benefits - working for the company they own; a 100 percent employee-owned

company.

Currently, our team is scattered over three locations in Fargo, so we're excited to bring

everyone together to improve collaboration and service to each other, to our customers

and our branches.

Employee-owned, customer-driven; Border States.

For more infomation >> Border States breaks ground on new Branch Support Center - Duration: 2:00.

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Estados de oxidacion/ Oxydation states - Duration: 9:48.

Welcome to science s.o.s. This time we are going to study the oxidation states.

What we have here is a small fraction of the periodic table. They are the representative elements.

But it is a small part. It goes from period 1, 2, 3 to 4, and from groups IA to group VIIIA

And these numbers that you see here, are the most common oxidation states for each of these groups.

What is the oxidation state?

It is the charge that an atom will acquire to obtain the electronic configuration of a noble gas.

For example, here we have lithium. If lithium loses an electron will have the electronic configuration of helium.

Because lithium has 3 electrons and helium has 2 electrons.

Each atom that acquires the electronic configuration of a noble gas will lower its energy level,

and will achieve stability,

you understand?

Here we have the sodium atom. Check your periodic table.

Perfect, there's the sodium.

How many valence electrons does it have?

it has 1 valence electrons

And here is the chlorine.

. How many valence electrons do you have?

Very good.

If it is in group 7, it has 7 valence electrons.

Here are the valence electrons.

We already saw that in atomic structure and the unit that corresponds to Lens and Lewis structure.

So you check it out.

Well, since chlorine is more electronegative than sodium,

The chlorine will remove an electron sodium.

Therefore, this electron is going to be erased and we are going to put it here

Since sodium lost an electron is going to be positively charged +1, it lost one electron.

As the chlorine gains an electron is going to be negatively charged.

We draw it in parentheses and the negative charge outside.

See, that's typical of an ionic bond. We can transform it into an empirical formula,

as seen in "ionic bond" in the previous video.

and this is it…

What is the oxidation state of sodium? +1.

What is the oxidation state of chlorine? -1.

Everything fits perfect.

What happens in covalent compounds?

Can we determine the oxidation state?

Of course we can do it.

Although in the covalent molecules there is no transfer of electrons,

in any case we can calculate the state of oxidation.

How is it done? In the following way:

The first thing to think is that here there is an ionic bond, you have to get that idea to be able to determine it.

So, if we had an ionic bond here, how many electrons would oxygen take away from carbon?

Oxygen would take away just the two they are sharing.

Therefore the oxygen oxidation state will be -2.

The most common oxidation state for group VI

And the most common oxidation state for oxygen

And this oxygen how much it would take away from carbon

I would take two

Therefore, its oxidation state will be -2.

What happens to carbon?

Carbon, with that oxygen, would lose 2, and with that other oxygen it would lose 2 more.

In total + 4.

And that is the oxidation state for carbon. See?

It has a variable oxidation state.

Recién les dije que el estado de oxidación más común para el oxígeno es -2,

except for peroxides. In peroxides the oxidation state of oxygen is -1.

Here we have a peroxide. It is hydrogen peroxide or hydrogen peroxide.

Here we have a peroxide. It is hydrogen peroxide or hydrogen peroxide.

Let's see, if this were an ionic bond, how many electrons would it remove?

None, and why none

Because they have no difference in electronegativity between atoms.

Hence, between them, the oxidation state will be zero.

But what happens here?

Which is more electronegative?

The oxygen is here and the hydrogen is here.

Therefore, if it were an ionic bond, oxygen could take away an electron,

but it is not, do not forget that.

Well, then the oxygen would be -1, because it takes one electron,

and the oxygen with that other hydrogen is -1, too.

Then, the oxygen oxidation state in the peroxides is always -1

How can we recognize a peroxide?

Because they are joined oxigen atoms.

Always in a peroxide we will have two oxygens,

and those two oxygens will be linked together.

Did you understand? very good perfect.

Let's keep going.

What happens here? We have a molecule a little bigger.

Can we calculate the oxidation state that way?

Of course we can.

Between sulfur and oxygen, which is more electronegative?

Of course oxygen.

So how many electrons would the oxygen remove from the sulfur if it were an ionic bond?

Very good, it'd take those two, then the oxygen is -2.

Of course it is -2, since this is not a peroxide.

Peroxides are those in which the oxygens are bound and the oxygen is -1.

Since oxygens are not bound here, the oxidation state is -2

Let's check. In this case

the oxygen with the sulfur are sharing one electron, at least one electron of the sulfur.

Then, the oxygen oxidation state there would be -1.

But in front of this hydrogen that is here, how much would it be?

-1 as well. In total it would be -2.

And this oxygen -1 with sulfur, -1 with hydrogen, in total -2.

And this oxygen from here, two electrons, if it were ionic would remove those two electrons,

What is the oxydation state?

-2

What about sulfur?

Let's see. The sulfur with that oxygen would lose 2 if it were an ionic bond.

So it would be +2.

With that other oxygen would also lose two, +2,

and with that oxygen there, one, +1,

and with the oxygen that is located here +1 too, in total it is +6,

oxidation state of sulfur.

To calculate the oxidation states, you can also use the rules of the oxidation states

that were developed from what I am telling you.

If you like to use the rules, you can do it. What do the rules say

The oxidation state of hydrogen is always -1 unless it is bound to a metal.

The oxygen oxidation state is always -2, except for the peroxides.

The oxidation state of fluor is always -1.

Then, with those rules and others, you can calculate states of oxidation.

Let's take the rules, of course, that's what we are here for.

Let's make sure they're fine. Let's make CO2, the molecule that's here.

CO2 would have this formula.

The oxidation state of the carbon we have here can be very variable ...

+4 ... -4, it can even be up to zero. We do not know what their oxidation state will be.

But we do know the oxidation state of oxygen.

How much is the oxidation state of oxygen?

-2, very well -2, because it is not a peroxide.

-2 x 2 because they are 2 oxygens, = 0

Now, all that remains is to determine and clear the X.

And the X will be +4, see? Oxidation state +4

slipped just with the molecule.

What do you think?

Do you want to make another example? Sulfuric acid, let's make sulfuric acid then.

Sulfuric acid has this formula: H2SO4.

Then … oxidation state of hydrogen …

Hydrogen is always +1 unless it is bound to a metal.

And here there is no metal, so it is +1 x 2.

Plus the sulfur, the sulfur is down here,

it has a state of variable oxidation,

so it's going to be an X.

Plus the oxygen, it's always -2,

except in peroxides and this, of course, is not peroxide.

Therefore, its oxidation state will be -2 x

how much oxygen is there? 4.

Okay, clear the incognita ... equal to zero.

Why is it equal to zero?

Because this is a neutral molecule, see?

? It has no charge, equal to zero.

We clear X, how much does the X give us? 6

OH! 6 here, 6 there,

perfect.

It is then checked how the oxidation states can be determined.

What did you think?

Easy, right? Fast and even entertaining.

See you in another chapter

of the fascinating world of chemistry,

here in Science SOS.

For more infomation >> Estados de oxidacion/ Oxydation states - Duration: 9:48.

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Mexico is CULTURALLY RICHER than the United States - Duration: 11:36.

For more infomation >> Mexico is CULTURALLY RICHER than the United States - Duration: 11:36.

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North Korea missile that could OBLITERATE United States caught experts off guard - Duration: 4:02.

North Korea missile that could OBLITERATE United States caught experts off guard

sparked fears of when it was reported Kim Jong-un had held meetings with senior advisors to discuss the possibility of launching a missile attack on the US territory of Guam.

Donald Trump promised to retaliate with "fire and fury" as tensions between Pyongyang and Washington escalated, and they threaten to spiral out of control as North Korea said it saw joint US-South Korea military exercises as an act of war.

, seemingly, released the information of two new powerful intercontinental ballistic missiles after he was pictured from his chemical research facilities. The North Korean dictator was pictured with diagrams of the proposed rockets, which experts claim could strike Washington, on the wall.

Reuters' Seoul deputy bureau chief Jack Kim claimed the information had caught experts across the world off guard.

He said: "There is one picture that shows a three-stage ballistic missile, called the Hwasong-13, which is believed to be a more powerful ballistic missile that could possibly hit all of the US mainland.

"That's what is alarming some people who have seen the picture." According to state media, North Korea decided against firing a missile at Guam, instead opting to wait for the "foolish Yankee's" next move.

Kim Jong-un, however, insisted his weapons were ready to be launched if Donald Trump provoked him.

Jack Kim added: "What is interesting is that North Korea state media have decided to show these pictures at this particular time, when it appears North Korea and the are both trying to lower tensions slightly after weeks of very harsh rhetoric directed at each other.

"It's possibly a message from North Korea that it's continuing to pursue developing ICBMs and other kinds of missiles such as the submarine launch missile, which is also seen in a separate picture." Kim Jong-un and North Korea have not just levelled threats against the US, the rogue state has told the UK it faces a "miserable end' if it joins military exercises alongside troops from South Korea and the US.

In a statement, North Korea's state news agency said the drills acted as proof of Washington's intention to invade.

The statement said: "The reality vividly shows that the US ambition for stifling North Korea remains unchanged no matter how much water may flow under the bridge and the puppet group's ambition for invading the north remains unchanged.

"Availing ourselves of this opportunity, we solemnly warn not only the US and puppet group but also satellites, including UK and Australia, which are taking advantage of the present war manoeuvres against the North that they would face a miserable end if they join in and play with fire by tiger moths of war.".

For more infomation >> North Korea missile that could OBLITERATE United States caught experts off guard - Duration: 4:02.

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9 STATES ARE 26 YEARS OLD TODAY!!!! WHICH ONES? - Duration: 2:10.

Today in Nigeria's History August 26

August 26 1993 Ibrahim Babangida steps down after eight years as military head

of state and Ernest Shonekan is sworn in as the Head, Interim National Government.

2011 Explosion rocks the United Nations building in Abuja when a car

rammed into the building destroying three floors out of the building's seven.

Islamist group Boko Haram claimed responsibility for the suicide bombing

which killed 23 and left 73 others injured. 1995 Human Rights lawyer Gani

Fawehinmi is arrested on arrival at Port Harcourt to address a rally organized by

his party the National Conscience Party by security agents and flown back to

Lagos in the same plane in which he arrived. He was told by the leader of the

team that they had orders not to allow him in enter Port Harcourt. Still on Gani

Fawehinmi in 1994, his chambers was invaded by 6 men wearing military uniforms who

shot at the building. 2 security guards were severely wounded from gunshot

wounds. A CNN reporter Bob Cohen filming the incident was deported from Nigeria.

2005 The Department of Petroleum Resources (DPR) and the Ministry of

Petroleum Resources organize a bid round for the allocation of oil and gas

acreages. Conoil Petroleum owned by businessman Mike Adenuga became the first

indigenous company to be awarded a deep offshore block when it offered to pay

$100 million to secure the block. 2 other indigenous companies

emerged as oil block owners which are Oando PLC and Sahara Energy.

1991 9 new states are created by the

Ibrahim Babangida administration to make the total number of states 30. They are

Kebbi, Kogi Delta, Edo, Enugu, Osun, Jigawa, Taraba and Anambra

States. 1944 The National Council of Nigeria and the Cameroons, a

political party is formally inaugurated with Herbert Macauley as its President and

Nnamdi Azikiwe as General-Secretary.

1957 Alban Uzoma Nwapa more known by his stage name Dr. Alban is born in Oguta,

Imo state. Today in Nigeria's History brought to you by Ojora, Olabisi