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Ket [755]
3 years ago
5

Element that is rolled into a foil found and used in your kitchen

Chemistry
1 answer:
Readme [11.4K]3 years ago
6 0
Aluminum is in aluminum foil
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luis set a glass of water outside in the sunshine. when he looked at the glass ten minutes later, the contents had changed. what
xeze [42]
Evaporation is the answer
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4 years ago
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Los alcoholes de cadenas largas presentan ________ puntos de ebullición. Asimismo, éstos al tener ________, el punto de ebullici
kow [346]

Answer:

Los alcoholes de cadena larga tienen <u>altos</u> puntos de ebullición. Además, cuando tienen <u>ramificación</u>, el punto de ebullición disminuye

Explanation:

El punto de ebullición de un alcohol se ve afectado, las interacciones dipolo-dipolo, las fuerzas de dispersión de van der Waals y los enlaces de hidrógeno.

Las fuerzas de las interacciones dipolo-dipolo y los enlaces de hidrógeno son más o menos las mismas en la serie de alcohol en serie, sin embargo, a medida que aumenta la longitud del alcohol, las fuerzas de dispersión de van der Waals aumentan debido al aumento de la atracción dipolo-dipolo.

Sin embargo, a medida que el alcohol se vuelve más ramificado, el área de la superficie aumenta, lo que disminuye las fuerzas de van der Waals, de modo que se requiere menos fuerza para separar las moléculas y hervir una muestra del alcohol.

Por tanto, los alcoholes de cadena larga tienen puntos de ebullición <u>elevados</u>. Además, cuando tienen <u>ramificación</u>, el punto de ebullición disminuye.

6 0
3 years ago
How are the properties of thermosoftening and thermosetting polymers different? Use ​ideas about the structures of these two typ
stepan [7]

Thermosoftening plastics melt when they are heated.This means that they can be recycled , which involves melting them before making a new product. Thermosoftening plastics do not have covalent bonds between neighbouring polymer molecules, so the molecules can move over each other when heated and the plastic melts.

7 0
3 years ago
What is the density, in g/cm3, of an object with a mass of 21 g and volume of 15 cm3?
maks197457 [2]

Answer:

1.4 g/cm^3

Explanation:

Density = Mass/Volume

Density = 21g/15cm^3

Density = 1.4 g/cm^3

Hope this helps!!!

-Unicorns110504

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4 0
3 years ago
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Suppose three neutrons are released when an atom in a sample of fissionable nuclei undergoes fission. Each of these neutrons has
Eddi Din [679]

Answer:

13 nuclei

Explanation:

From the question, the fission of one nucleus produces three neutrons which causes  more nuclei to undergo fission.

This implies that, after the first fission, three neutrons cause three nuclei to undergo fission. The three nuclei that underwent fission produces nine neutrons which causes the fission of nine nuclei.

All together we the number of nuclei that underwent fission as;

1 + 3 + 9 = 13 nuclei.

3 0
3 years ago
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