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snow_lady [41]
3 years ago
12

A student placed equal volumes of honey and of water in two, identical, open dishes, and left them at room temperature for 8 hou

rs. She observed that the amount of water decreased, but the amount of honey seemed unchanged. Knowing that honey is a highly concentrated solution of sugar in water, which statement should the student make to explain this phenomenon? Honey has a much lower vapor pressure than pure water has. So, pure water evaporates at a much higher rate. Honey has a much higher vapor pressure than water has. So, water evaporates at a much higher rate. Honey has a much lower freezing point than water has. So, water evaporates at a much higher rate. Honey has no vapor pressure. So, water evaporates at a much higher rate.
Chemistry
2 answers:
Ahat [919]3 years ago
8 0

Answer: Honey has a much lower vapor pressure than pure water has. So, pure water evaporates at a much higher rate.

Explanation:

Ronch [10]3 years ago
5 0

Answer:

A

Explanation:

Edge.

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Which transition by an electron will release the greatest amount of energy? answer soon please ​
alexira [117]

Answer:

When electron jumps from high energy level to lower energy level.

Explanation:

The elctronic transition from one energy level to another energy level within the atom, always involve energy transitions.

The energy released or absorbed by electronic transition is always discrete and is called as " Photon". It means when electron jumps from when energy level to another energy level the energy released or absorbed is treated as photon emitted or absorbed.

When an electron jumps from higher energy level to a lower energy level, a photon of specific wavelength and specific energy is emitted in other words we can say that energy is released or emitted.

The energy of photon emitted or absorbed is easily calculated using Rydberg Formula which is simply the energy difference between the two energy levels and is given as under;

Ephoton = Eo ( 1 / n1^2 - 1 / n2 ^ 2)

In the above formula n1 is the initial energy level of electron and n2 is the final energy level of electron.

Eo = 13.6 eV ( Here "o" in Eo is in subscripts)

In n1 and n2 1 and 2 are in the subscripts.

^ represents that the disgits after them are exponents.

So by just putting the values of energy levels n1 and n2 we can easily calculate the value of energy of photon ( energy due to electronic transition) and compare the results that which transition will give high energy photon and which will give low energy photon.

3 0
4 years ago
Significant number of <br> A) 2348<br> B) 7.0001<br> C) 0.0023<br> D)24,500<br> E) 0.1060
jek_recluse [69]

Answer:

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6 0
3 years ago
Calculate the atomic mass of copper if copper-63 is 69.17% abundant and copper-65 is 30% abundant
astraxan [27]

Answer:List of isotopes

Nuclide Z Isotopic mass (Da)

Excitation energy

63Cu 29 62.9295975(6)

64Cu 29 63.9297642(6)

65Cu 29 64.9277895(7)

Explanation:

6 0
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icang [17]

Answer:

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Explanation:

3 0
3 years ago
True or False: "Endothermic Reactions absorbs energy in the form of heat."
alexira [117]

Answer:

true

Explanation:

Endo means inside

but exo means outside

an Endo thermic reaction sounds like it wouldn't be the one to give off heat, so it might be storing heat.

7 0
3 years ago
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