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Alina [70]
3 years ago
8

Which is a diatomic molecule? A. He B. O2 C. NaCl D. CuF2

Chemistry
2 answers:
Alex3 years ago
6 0

Answer:

O2

Explanation:

katrin2010 [14]3 years ago
4 0

O2 is the right answer                      

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In which solution might a cell maintain homeostasis through diffusion?. . A isotonic. B hypertonic. C hypotonic. D concentrated
Art [367]
A as if the cell is placed in a solution with the same solute and water potential as it no water moves in nor out so the cells remains in homoeostasis

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3 years ago
Select all of the abiotic factors in an ecosystem.
erica [24]

Answer:

Sunlight, Soil, Rocks, Temperature and dead deer

Explanation:

You could say the dead tree is now an abiotic factor because biotic factors refer to living things

7 0
2 years ago
Which of the following aqueous solution will have the highest boiling point
Sliva [168]

Ionic molecules have higher boiling point than covalent molecules.

So that leaves Na2SO4 and NaCl.

The ionic molecule with higher charge will have higher boiling point.

Na2SO4 have ions with charge +-2.

NaCl have ions with charge +-1.

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4 0
3 years ago
Which pair of molecules is not a polar bond?<br> OA. N-O<br> OO<br> B. C-O<br> C.O-H<br> OD. 0-0
hodyreva [135]
Od. 0-0 does not pair of the Molecules bid it’s polar bond due to certain pairs of molecules not being present within its presentations
4 0
3 years ago
What is the pressure in atmospheres exerted by a 0.500 mole sample of nitrogen gas in a 10.0 L
Nonamiya [84]

Answer:

The pressure is 1, 22 atm.

Explanation:

We use deal gas formula. First, we convert the unit of temperature in Celsius into Kelvin. We use the constant R= 0,082 l atm /K mol.Then, we solve P (pressure).

0°C=273 K   25°C= 273 + 25= 298 K

PV=nRT   -----> P= (nRT)/V

P= (0,5 mol x 0,082 l atm /K mol x 298 K)/ 10 L

<em>P= 1, 2218 atm</em>

3 0
3 years ago
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