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Papessa [141]
2 years ago
5

Write the name for: Mg3O2

Chemistry
1 answer:
sveticcg [70]2 years ago
4 0

Answer:

you sure it is the right sign your using

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All energy originates from the _______.
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Answer:

sun

Explanation:

because all plants use energy from the sun to make food and grow

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]According to Schrodinger's work with electrons and their orbital paths, what can be determined about the electrons of an atom?
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Schrodinger developed a famous equation that allows the solutions for electron wave functions to be found given a specific potential. For the case of an atom, Schroginger's equation allows the determination of electron wave functions. These wave functions tell us how electrons are distributed in space around the atom.
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1 2 3 4 5 6 7 8 9 10 The diagrams show gases that are stored in two separate but similar containers. 2 identical containers have
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gas 2 because it has more particles colliding.

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A geologist finds a mineral sample alongside a swift flowing river. She determines the mineral is a type of Quartz. Which is tru
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I would say d or b sorry im not that good
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3 years ago
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- How many grams are in 4.6 x 1016 molecules of phosphorus trichloride (PCI)?
MariettaO [177]

Answer:

0.0000101 grams.

Explanation:

First of all, use Avogadro's number to convert from molecules to moles.

Avogadro's number is 6.02 x 10^23.

Second of all, to convert from moles to grams, find the substance formula of phosphorus trichloride. After finding the substance formula, then find the molar mass of phosphorus trichloride.

Phosphorus trichloride is PCl3

Now find the molar mass of PCl3

P = 31.0 amu

Cl = 35.5 amu

They are three chlorine atoms and one phosphorus atom. So you do this.

31.0(1) + 35.5(3) = 137.5 g/mol

Now use dimensional analysis to show your work

4.6 x 10^16 grams of PCl3 * 1 mol/ 6.02 x 10^23 * 137.5 g/mol / 1 mol

The grams and the moles cancel out.

So now do [(4.6 x 10^16) / (6.02 x 10^23)] x 137.5

and you will get 0.000010507

4.6 has the fewest digits which is 2.

So use sig figs and the answer rounds to the nearest millionths.

0.000010507 rounds to 0.0000101

So the final answer is 0.0000101 grams(don't forget the units)

Hope it helped!

4 0
3 years ago
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