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Rufina [12.5K]
3 years ago
15

**URGENT**** Which group of elements has the highest boiling point? *

Chemistry
2 answers:
iris [78.8K]3 years ago
6 0

Answer:  the elements that have the hightse boiling is trnsition metals

xplanation:

Ray Of Light [21]3 years ago
4 0
I think transmition metals as These properties are due to metallic bonding by delocalized d electrons, leading to cohesion which increases with the number of shared electrons.
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A thermometer is placed in a beaker full of water that has been sitting on the lab table for a few hours. The beaker is placed o
meriva
The temperature would be 30C if the water is at the same temp as the lab  <span />
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3 years ago
If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp
4vir4ik [10]
The beaker of acetic acid will cool more quickly.

The specific heat capacity of acetic acid is about half that of water.
Thus, it takes twice as much heat gain (or loss) in acetic acid to cause a given change in temperature.
If everything else is constant and heat is being lost at the same rate, the temperature of the acetic acid should drop twice as fast as that of water.
4 0
4 years ago
Calculate the change in the standard entropy of the system, delta s degree for the synthesis of ammonia from N_2(g) and H_2(g) a
Svet_ta [14]

Answer:

\Delta S^{0} for the reaction is -198.762 J/K

Explanation:

N_{2}(g)+3H_{2}(g)\rightarrow 2NH_{3}(g)

Standard change in entropy for the system (\Delta S^{0}) is given by-

\Delta S^{0}=[2moles\times S^{0}(NH_{3})_{g}]-[1mole\times S^{0}(N_{2})_{g}]-[3\times S^{0}(H_{2})_{g}]

where S^{0} represents standard entropy.

Here S^{0}(NH_{3})_{g}=192.45J/(K.mol), S^{0}(N_{2})_{g}=191.61J/(K.mol) and S^{0}(H_{2})_{g}=130.684J/(K.mol)

So, \Delta S^{0}=[2\times 192.45]-[1\times 191.61]-[3\times 130.684]J/K=-198.762J/K

3 0
3 years ago
Isotonic, hypertonic and hypotonic cells: describe
olya-2409 [2.1K]
<h3>♫ :::::::::::::::::::::::::::::: // Hello There ! //  :::::::::::::::::::::::::::::: ♫</h3>

➷  An isotonic cell has the same concentration inside the cell as the outside solution. This would mean there is no net movement of water. Isotonic cells are sometimes called 'normal'

Hypertonic cells have a higher water concentration inside the cell than outside the cell. This causes water to move out of the cell and make the cell shrivel.

Hypotonic cells are the opposite of hypertonic cells. They have a lower water concentration inside the cell than outside. This causes water to move into the cell and make the cell bloat.

[Any further queries, feel free to ask]

<h3><u>❄️</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0
4 years ago
Difference between hygroscopic and deliquescent substance with of each​
iVinArrow [24]

Answer:

The water soluble substance which absorb moisture from the air and then dissolve on the absorbed moisture to change into liquid taste are called deliquescent substances whereas the substances which absorb moisture from air but do not change their state are called hygroscopic substances.

7 0
3 years ago
Read 2 more answers
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