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Recently Posted Questions

Posted in Chemistry

What is the Bond Type and Molecular polarity of PCl3?

It is covalent bonding. The electrons are shared between the phosphorus and the chlorines.

covalent bonding is when electrons are shared between two elements.

molecular polarity is a little bit complicated, but I will try to explain ;)
PCl3 is an alternation on tetrahedral molecules.
It means that P has one lone pair of electrons. This pair of electrons are only attracted to the P nuclei and thus a greater freedom of motion.
This means that their orbital is bigger and this pushes the 3 Cl atoms closer together.
The angle between each Cl now is 107 and the angle between Cls and P is greater than 107.
Now, due to this shape, and also electronegativity (Cl is more electronegative than P meaning that it tends to hog the electrons they share closer to itself), PCl3 is polar. Electrons that are shared tend to flow closer towards the Cl than the P side.
Therefore, on the Cl side of the molecule it's, more negative. On the P side, it's more positive.

Posted in Mathematics

Tameeka is in charge of designing a pennant for spirit week. She wants the base to be 3 and one half feet and the height to be 6 and one half. She has 20 square feet of paper available. Does she have enough paper? explain.

Hello!

You need to calculate the surface of the pennant.

It is a rectangle, so you can use this formula :

A = w\times h

(w : width ; h : height).

A = 3.5 \times 6.5 = 22.75 \text{ square feet}

22.75 > 20

Tameeka doesn't have enough paper.

Posted in Social studies

Which city was located nearest the nile river delta

The closest city to the nile river delta is cairo

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Posted in Social studies

What other areas beside egypt did the new kingdom pharoahs conquer

They were: Sinai, Canaan, Syria, and part of Cilicia I think. Hope it's ok ;)

Posted in Mathematics

Write words to match the expression. 24- ( 6+3)

Words to match the expression 24 - (6 + 3) is given as follows:

"the difference of 24 and the sum of 6 and 3"

Posted in English

If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?

1. Some things you can buy there are healthy
2. Sometimes it's the only thing people can find to eat when they don't have time
3. People should have the choice to decide if they want to use them or not
4. Maybe it's better to offer some alternative (compromise): buy a soda for twice the price of milk - some people would choose healthy milk

do you need some more? :)

Posted in Mathematics

Which two numbers have a difference of 5 and a product of 3.36???

X - y = 5

x.y = 3.36

(x-y)^2=5^2

 x^{2} -2xy + y^{2} =25

 x^{2} + y^{2}=25+6.72=31,72

(x+y)^2= x^{2} +2xy+ y^{2} =31,72 + 6,72 = 38,44

 \sqrt{(x+y)^2}= \sqrt{38,44}

x+y= 6,2
 and we know that x - y= 5

x+y+x-y=6,2 + 5
2x=11,2
x=5,6

so then y=0,6

Answer:

x= 5,6
y= 0,6

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Posted in Social studies

What are the advantages and disadvantages of globalization

What are the advantages and disadvantages of globalizationThe advantages of globalization
* development of interpersonal contacts
* development of interstate relations
* integration activities
* spreading of new technologies
* improvement of social conditions

  disadvantages of globalization
* Fixing the economic differences between the rich North and the poor South * gradual disappearance of cultural differences
* fading tradition


But you can actually go into bigger detail and then you find some more features which kind of are incorporated in the listed ones. Makes sense?

Posted in Spanish

Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?

Prefiero coche o en avión, sólo depende de la distancia que se está recorriendo. Si yo voy a ir a una corta distancia prefiero un coche. Sólo porque es más "estacionario". Si voy a viajar una distancia más lejos prefiero un avión. Elijo un avión, ya que sería más fácil y mucho menos cansado de conducir en el coche. 

Posted in Mathematics

What is 25% of 500.00

25%=25/100
so all you have to do is find the result of
25/100*500.00= (25*500)/100 = 25*5 (because 500/100=5)

so the result is 125.

Posted in English

Who is the author of Alice's Adventures in Wonderland'??

Hi,

The author of Alice's Adventures in Wonderland is Charles Lutwidge Dodgson ( his pen name isLewis Carroll ). He was also an English mathematician.


;)

Posted in Biology

Are there any producers who don't do photosynthesis?

Actually yes. You can find organisms, like bacteria, living in deep oceans, which do not have access to sunlight. There are cases in which they use thermal resources in order to produce energy. They are called chemoautotrophs. You can find them around deep ocean "smokers".

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Posted in English

Passe para a voz passiva:- Kevin asked Dennis a question-Somebody Build the house last year-She gives him a box

Hi,

1. Kevin asked Dennis a question. - Dennis WAS ASKED a question by Kevin.

2. Somebody build the house last year. - The house WAS BUILT last year (by somebody).

3. She gives him a box
. - He IS GIVEN a box (by her).

;)

Posted in Spanish

Conjuga los siguientes verbos en presente y preterito indefinido: SER, ESTAR, HACER.

soy eres es somos sois son fui fuiste fue fuimos fuisteis fueron estoy estás está estamos estáis están estuve estuviste estuvo estuvimos estuvisteis estuvieron hago haces hace hacemos hacéis hacen hice hiciste hizo hicimos hicisteis hicieron

Posted in English

What's the number of lines for a sonnet?

Fourteen! srry i'm just 5 yrs late lol

Posted in Spanish

Responde a las preguntas: ¿Cómo te llamas? ¿De dónde eres? ¿A qué te dedicas? ¿Tienes hermanos?


Me llamo Lucy. Soy de España. Soy estudiante. Tengo una hermana y dos hermanos.

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Posted in Business

Who was Adam Smith? Anybody?

Adam Smith (5 June 1723 - 17 July 1790) is Scottish philisopher. He is best known in : The Theory of Moral Sentiments and An Inquiry into the Nature and Causes of the Wealth of Nations.


Posted in French

Où vit-on le mieux et pourquoi : en ville ou à la campagne?

Here's what I would say: 

Si l'on aime la nature et l'air frais, il vaut mieux vivre à la campagne. On peut ainsi faire de belles balades dans la forêt ou dans les prés, voir des animaux, ramasser des fruits dans les vergers, écouter les sons de la nature. Dans la ville, l'air est pollué, il y a du bruit en permanence, les gens sont stressés, agressifs, ... 

Posted in Spanish

Describe tu habitación/dormitorio.

PARAGRAPH:


Mi habitación es pequeña, mide no más de cinco metros de largo por cuatro de ancho. Sin embargo, a mí me encanta. Tiene una puerta de madera para acceder a ella. Dentro de mi habitación tengo una cama individual, un aire acondicionado, un closet, una cesta para tirar la basura, y un pequeño estante que uso para guardar libros. La ventana de mi dormitorio tiene vista hacia una montaña. Es hermoso despertar con esta vista, junto al canto de las aves tropicales.

Posted in Chemistry

Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types?*c2h4+h2o*c3h8 + hcl*c2h2+br2*c4h10+br2*c3h6+br2

- C2H4 + H20 --> C2H5O

- C3H8 + Cl2--> C3H7Cl +HCl

-
C2H2+Br2 --> C2H2Br2

- C4H10+Br2 --> C4H10+HBr

C3H6 + BR2 --> C3H6BR2




Posted in History

The Inca Empire was located at the western end of which continent? Can someone explain?

It covered all of the modern day country Chile (in South America)

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