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3 years ago

A functional group of atoms, such as OH, is called a

Chemistry

1 answer:

Licemer1 [7]3 years ago

7 0

Hydroxy group..

... :):) ....

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Two gas samples have the same number of molecules, the same volume, and the same pressure. Which of the following could be true?

OverLord2011 [107]

The choices are:
A. The first gas sample has a temperature of 273 K, and the second gas sample has a temperature of 0°C.
B. The first gas sample has a temperature of 273 K, and the second gas sample has a temperature of 298 K.
C. The first gas sample has a temperature of 273 K, and the second gas sample has a temperature of 273° C.
D. The first gas sample has a temperature of 273 K, and the second gas sample has a temperature of 100° C.

The correct answer is A because the two gases will have the same temperature and 273 K = 0°C

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3 years ago

How many valence electrons would atoms of the element boron have?

vagabundo [1.1K]

Answer:

3 valence electrons

Explanation:

Atoms of Boron have 3 valence electrons

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3 years ago

What is the energy in joules of one photon of microwaveradiation with a wavelength 0.122m?

pentagon [3]

Answer: The energy of photon is $162.93\times 10^{-26}J$

Explanation:

The relation between energy and wavelength of light is given by Planck's equation, which is:

$E=\frac{hc}{\lambda}$

where,

E = energy of the light = ?

h = Planck's constant = $6.626\times 10^{-34}Js$

c = speed of light = $3\times 10^8m/s$

$\lambda$ = wavelength of photon = 0.122 m

Putting values in above equation, we get:

$E=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{0.122m}\\\\E=162.93\times 10^{-26}J$

Hence, the energy of photon is $162.93\times 10^{-26}J$

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3 years ago

PLS HELPPP why is CH3OH more polar than CH3CH2OH

dusya [7]

Answer:

Explanation:

Polarity is about differencens in electronegativity. CH bonds have around the same electronegativity value so a CH bond is nonpolar. The more CH bonds there are in a molecule, the more nonpolar it is. Since CH3CH2OH has more carbon-hydrogen bonds than CH3OH, it is more nonpolar. With the same reasoning, since CH3OH has less CH bonds, it's more polar.

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3 years ago

Plz help hurry! I will give brainlest

Ede4ka [16]

Answer: mitochondria

Explanation:

it affects the cell because it produces the power of the cell, let me know if this helpes

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3 years ago