Handing out brainliest to the correct answer!!!

2 answers:

8 0

Answer -C They are defined by the number of electrons.
An orbital is a function that describes the probability of finding the electron with certain energy at certain distance from the nucleus therefore, it is defined by the number of electrons.

vladimir1956 [14]3 years ago

6 0

C.? I MAYBE WRONG SORRY IF I AM

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In rabbits, the gene for black fur is dominant (F), but the gene for white fur

Pepsi [2]

A white rabbit would therefore have (ff)

If a trait is recessive, then it can only be expressed if both alleles (individual letters) are recessive (lowercase).

7 0

3 years ago

The vapor pressure of pure water at 250C is 23.77 torr. What is the vapor pressure of water above a solution that is 1.500 m glu

Olegator [25]

Answer:

Vapor pressure of water = 23.14torr

Explanation:

When you made a solution, vapor pressure decreases following Raoult's law:

$P_{solution} = X_{solvent} P_{solvent}$

<em>Where P is vapor pressure and X mole fraction</em>

As vapor pressure of water is 23.77torr we must find the mole fraction of water knowing the solution is 1.500m glucose (That is 1.500 moles of glucose per kg of water = 1000g of water).

1000g of H₂O are, in moles (Molar mass: 18.02g/mol):

1000g H₂O ₓ (1mole / 18.02g) = 55.5 moles of H₂O.

As we know now the solution contains 55.5 moles of water and 1.5 moles of glucose. Thus, mole fraction of water (Solvent) is:

$X_{H_2O} = \frac{55.5molesH_2O}{55.5molesH_2O + 1.5 molesGlucose} = 0.9737$