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LiRa [457]
3 years ago
6

Can anyone can answer practice problem exercise 6.5

Chemistry
2 answers:
NemiM [27]3 years ago
6 0

Answer: Add more information please! Thanks!

Explanation:

Anettt [7]3 years ago
4 0
The answer is: 62.498 g/mol
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Water circulates through Earth's water cycle by changing its _____.
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Water moved through the water cycle by changing its state. Think, for example, of water evaporating (liquid to gas), snow sublimating (solid to gas) or melting (solid to liquid), rain (gas to liquid), sleet (liquid to solid), or snow (gas to solid).

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Which statement best explains why the elements in Group 18 do not have electronegativity values?
Gnesinka [82]

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1) The elements have filled valence levels.

Explanation:

Since they have filled valence levels, they're stable and don't need to electrons to fill their valence shells since they're already full.

2) False, They do have electrons

3) False, He does have only one electron shell, but going down the periods, every next element have one more electron shell than a preceding one has.

4)False, they're actually the smallest atoms of their respective period

5 0
2 years ago
An aqueous solution contains 32.7% KCl (wt/wt%). what is the mole fraction of KCl in the solution
inna [77]

The mole fraction of KCl in the solution is 0.1051

calculation

mole fraction of KCl in solution = moles of KCl / total number of moles(moles of KCl +moles of H2O)

moles=mass/molar mass

mass of KCl=32.7g

molar mass of KCl= 39 +35.5

moles of KCl is therefore= 32.7g/74.5 g/mol=0.439 moles

find the moles of H2O= mass of H2O/molar mass

mass of H2O=100-32.7=67.3g

molar mass of H2O=( 1 x2) +16=18 g/mol

moles = 67.3/18 =3.739 moles

total moles=3.739+0.439=4.178 moles

mole fraction is therefore=0.439/4.178=0.1051

5 0
3 years ago
What would happen if the Earth was tilted at 45⁰ rather than 23.5⁰?
denis23 [38]

Answer:

it would cause global warming

Explanation: hope this helps

4 0
3 years ago
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