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Oduvanchick [21]
2 years ago
11

In this equation, 2Mg + O2 → 2MgO, what is the coefficient of the oxygen molecule?

Chemistry
1 answer:
Svetlanka [38]2 years ago
3 0
I’m pretty sure it’s c
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A geneticist has discovered a new compound that is made up of a small number of identical
eduard

Answer:

They are monomers.

Explanation:

Edg 2020

4 0
3 years ago
Read 2 more answers
Which piece of glassware shown below is used to hold and dispense a solution of known concentration during a titration?
Musya8 [376]

Answer:

Answer C

Explanation:

Got it off of q**zlet ;)

4 0
2 years ago
draw two lewis structures for a compound with the formula c2h6o and compare the boiling points of the two molecules
Volgvan

Answer:

See explanation and images attached

Explanation:

There are two compounds that could have molecular formula of C2H6O, they are ethanol and methoxy methane (trivial name: methyl ether).  The structures of the two compounds are shown in the image attached as obtained from quora.

The boiling point of methoxymethane is -24.8°C  while that of ethanol is about 78.5°C. The reason for the high boiling point of ethanol is the presence of intermolecular hydrogen bonding leading to a stronger intermolecular interaction compared to methoxymethane molecules held together only by very weak dispersion forces.

4 0
2 years ago
How many molecules are there in 7.27 miles of ammonia?
NemiM [27]

Hey There!

To solve this question remember that 1 mole of ammonia is equal to 17G of ammonia.

Using that, we first multiply 17 by 7 = 24

Then we multiply 7 by .27 = 1.89

Finally, taking those and adding them together gives you the answer...

<u>25.89 grams :)</u>

<u></u>

<u>Have a great day, I hope I helped.</u>

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<u>+ Brainliest & Five stars are always appreciated </u>

4 0
3 years ago
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Assuming an ionization efficiency of 13.0%, how many such photons are needed to ionize 1.00×1016 atoms?
sammy [17]

Answer:

7.69x10^{16}

Explanation:

The ionization is the energy necessary to transform an atom in an anion. So, it's the energy it requires to gain an electron.

This ionization occurs for the photoelectric effect - the emission of electrons by  metal using photons. So, if the efficiency is 100%, 1 photon can ionize 1 atom, but for an effficiency of 13.0%:

N = \frac{1.00x10^{16}}{0.13}

N = 7.69x10^{16}

Where N is the number of photons.

6 0
3 years ago
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