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SIZIF [17.4K]
3 years ago
12

HEY COULD SOMEONE PLEEZ HELP ASAP!?!?THANKS! :)

Chemistry
1 answer:
marysya [2.9K]3 years ago
6 0
OKAY I HELPED YOU (: !
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Which of the following best describes the location of element Tin?
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Answer:

The location of element tin is

Group 14, Period 5

Explanation:

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Consider the change given below. At constant pressure, is work done by the system on the surroundings? By the surroundings on th
alexira [117]

Answer : At constant pressure work is done by the system on the surroundings.

Explanation :

Work done : Any quantity that flows across the boundary of a system during a change in its state and it completely convertible into the lifting of a weight in the surroundings.

Formula for work done is:

w=-p_{ext}dV

Sign convention :

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w = (-ve)

  • When volume compress then surrounding work that means work done on the system.

w = (+ve)

The given reaction is:

Hg(l)\rightarrow Hg(g)

This is a evaporation process in which phase changes from liquid state to gaseous state at constant temperature.

At constant pressure, work depends only on volume.

In evaporation process, the volume expand that means work is done by the system on the surroundings.

Sign convention is, w = (-ve)

Thus, at constant pressure work is done by the system on the surroundings.

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3 years ago
Uhm cell parts and functions
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A cell is the structural and fundamental unit of life. The study of cells from its basic structure to the functions of every cell organelle is called Cell Biology. Robert Hooke was the first Biologist who discovered cells

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Characteristics of Cells

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3) The nucleus (major organelle) holds genetic information necessary for reproduction and cell growth

hope \: its \: helpful \: to \: you \: please \: mark \: me \: a \: brainliest

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A molecule whose ends have opposite electric charge is call a_?
snow_lady [41]
A polar molecule is a molecule whose ends have opposite electric charges. An example of a polar molecule is H2O or water. Water has 1 side which is positive and the other side which is negative. It is a dipole which means that the two sides are not having the same charges.
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If you are traveling at 60mi/hr, how many meters per second is that equivalent to?
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26.8224 Meters per Second.      

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