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Ivanshal [37]
2 years ago
12

Sin duda habrás ido al supermercado ¿Cómo se encuentran los productos que ahí se ofertan a la venta? ¿Qué sucede si te encuentra

s entre los artículos de papelería una caja de tetrapack de puré de tomate, o si entre las manzanas encuentras un empaque de jamón? ¿Por qué fue fácil identificar que la caja de tetrapack o el empaque de jamón no deben estar
ahí? Explica.

Chemistry
1 answer:
Semmy [17]2 years ago
7 0

Answer:

En el supermercado, los productos que se ofertan se encuentran ordenados por sector, específicamente diferenciados de otros tipos de productos. Así, por ejemplo, los artículos de limpieza se encuentran ubicados en un sector específico, sin mezclarse con los productos de otros sectores, como los de lácteos, por ejemplo.

Es ese orden el que permite que los consumidores puedan realizar sus compras de forma efectiva, ahorrando tiempo y maximizando las ganancias de la empresa, ya que los consumidores tardan menos tiempo en realizar sus compras, pudiendo la empresa atender a mayor cantidad de clientes.

Por ello, en caso de que un producto no se encuentre en su sector previamente determinado produce en el consumidor, como mínimo, una sorpresa, además de la presunción de que puede tratarse de un error. Ello pues, como se dijo, el orden es fundamental para garantizar que el consumidor encuentre el producto que busca en el lugar específico para ello.

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DaniilM [7]
<span>Africa was more south and west and South America was more south and east of their current positions. I would say this would be because because South America and Africa used to be together in Gondwanaland millions of years ago and then apparently drifted apart as Wegener thought and then with the advent of plate tectonics it became apparent that the mid-Atlantic ridge runs between them and due to spreading along it Africa and S America got separated.</span>
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3 years ago
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Imagine this scenario. All of the trees and plants are removed from a steep mountainside how would the removal of the trees and
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The polymerization of amino acids produces:
Delicious77 [7]

Answer:

Proteins

Explanation:

Polymerization, in chemistry, is the chemical combination of monomeric units to form a polymer. Polymers are large molecules made up of smaller units called monomers. Amino acids are the monomeric units of proteins i.e. A protein is made up of of many amino acids joined together.

Therefore, the chemical combination of amino acids will form a peptide bond between the carbon atom of the acid group and nitrogen atom of the amine group in the structure of the amino acids. This is done by the loss of a water molecule. The continuous repetition of this polymerization process will form a chain called polypeptide, which is the PROTEIN.

8 0
3 years ago
How much energy is used to melt 44.33 g of solid oxygen?
Nutka1998 [239]

Answer:

Q1 = C * m * dT

Q2 = Qm * m

Qtotal = Q1 + Q2

Q1 - is amount of energy you need to apply to heat oxygen from the current temperature till you reach the melting temperature. Only if the oxygen is below to melting temperature.

C - is calorific capacity of oxygen -- better look at tables, it is a constant value

m - is the amount of oxygen, we will use moles because the other data shows moles, but could be grams, kg, etc.

dT - is the diference of temperatures between the current and the melting one. The melting temperature is constant and you can find it on tables, then (Tm - To)

Q2 is the amount of energy you have to add to melt oxygen once the oxygen has reached the melting temperature (Tm)

Qm is a constant value you could find on tables, depends on the mass of oxygen and is due to internal processes as changes in atomic distributions

If the oxygen is initially at melting temperature (melting point) you only need to know Q2, as dT = 0

I will do an example for you, but in future you should provide data of constants, it takes very long to find them in books or internet.

Data from tables

Tm =  54.36 K

C = 29.378 J/mol K this is at 25 C (or 298 K), is not really correct, you should look at its value at less than 54.36 K, but you can use it here.

Qm = 0.444 kJ/mol

Problem -- you have 44.33g of Oxygen -- Molecular weight of O2 is 32 g/mol

So you have 44.33/32 = 1.385 moles of oxygen

a) if oxygen is already at melting temperature: you only have to melt it

Qtotal = Q1 + Q2 = [0 (dT = 0) + Qm * m] = 0.444 * 1.385 = 0.615 kJ = 615 J

b) supposing an initial temperture of 50 K: now you have to heat oxygen till melting temperature and then melt it.

Q1 = C * m * dT = 29.378 * 1.385 * (54.36 - 50) = 177.442 J

Q2 = Qm * m = 615 J

Qtotal = 177.442 + 615 = 792.44 J

Explanation:

4 0
2 years ago
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Which of the following best describes urine?
Anestetic [448]

Answer:

Homogeneous mixture.

Explanation:

On mixing with water, it dissolves completely in it, hence, being a homogenous mixture.

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

3 0
2 years ago
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