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Readme [11.4K]
3 years ago
11

What is the percentage of oxygen in carbon dioxide? (CO2) *

Chemistry
1 answer:
gladu [14]3 years ago
8 0

Answer: 72.7

Explanation:

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WILL MARK AS BRAINLIEST IF CORRECT
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Answer:

1. How many electrons does hydrogen need in order to have a full shell of valence electrons?...two

2. How do valence electrons impact the type of bonds an atom makes?...An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.

3.Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use “–” to represent a single bond and “=” to represent a double bond.)...O=C=O

4. Methane’s chemical formula is CH4. Is there a bond between any of the hydrogen atoms? Why or why not?...No, there is not because carbon needs four bonds, so it bonds with each hydrogen atom; hydrogen only forms one bond.

5. In hydrogen peroxide (H2O2), which option best shows how the atoms are ordered?...H-O-O-H

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3 years ago
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Earth's atmosphere blocks short wavelengths of the electromagnetic spectrum. Which telescopes must be places in orbit around Ear
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Explanation:

this is the answer because the question is asking what telescope must be

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3 years ago
Los alcoholes de cadenas largas presentan ________ puntos de ebullición. Asimismo, éstos al tener ________, el punto de ebullici
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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.

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3 years ago
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Answer:

nuclear

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