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iren [92.7K]
3 years ago
13

If a substance cannot be separated by physical means or chemical means, it is ___________.

Physics
2 answers:
mojhsa [17]3 years ago
8 0
If a substance cannot be separated by physical means or chemical means, it is _an element_.
bogdanovich [222]3 years ago
5 0

If a substance cannot be separated by physical means or chemical means, it is _an element_.. your welcome :)

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There is more land in the Northern Hemisphere than in the Southern Hemisphere. How might this difference affect CO2, concentrati
alexira [117]

Oxygen is a product of photosynthesis, therefor lover levels of C02 would be in the area with more water due to more phtosynthetic processes happening converting it into oxygen.

hope this helps, please mark brainliest. :)

5 0
3 years ago
When very electronegative atoms, like oxygen, bond to atoms with lower electronegativity, like lithium, what's the result?
umka2103 [35]

(A) The oxygen atom becomes strongly negative.

Explanation:

When a very electronegative atom like oxygen bonds to an atom with a lower electronegativity, like lithium, the oxygen atom becomes strongly negative and the lithium becomes strongly positive.

The attraction between these oppositely charged ions results in the formation ionic bond.

  • An ionic bond is an interatomic bond in which a highly electronegative atom is bonded to less electronegative one.
  • The electronegative nature of the oxgyen allows is to gain the electrons lost by weakly electronegative lthium.
  • Most metals have low electronegativity.
  • They then both will form ions.
  • The attraction between the oppositely charged ions results in an ionic/electrovalent bonding.

learn more:

Ionic bond brainly.com/question/6071838

#learnwithBrainly

3 0
3 years ago
What rapid changes to earths surface are caused by shifting plates
PtichkaEL [24]
I am not sure if this is the answer you are looking for but a earthquake occurs when the plates shift. 
Hope this helped. 
4 0
3 years ago
The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 Kelvin is called its
son4ous [18]
Specific heat.  The definition of specific heat is the amount of energy required to raise the temperature of 1g of a substance by 1K or 1°C.
8 0
3 years ago
Read 2 more answers
5. You head downstream on a river in an outboard.
Elena-2011 [213]

Answer:

hope this helps you're welcome

5 0
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