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Radda [10]
3 years ago
5

Answer Fast Please!!!

Chemistry
2 answers:
den301095 [7]3 years ago
8 0

Answer:

The Periodic Table is organized in order of atomic number.

Explanation:

Plz give me brainliest I worked hard on this... thank u in advance.

Anastasy [175]3 years ago
7 0

Answer:

I believe it is A. The Periodic Table is organized in order of atomic number.

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 :

  • When volume expand then system work that means work done by the system.

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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15. How many moles of CaCl are in 250. mL of 3.00 M of CaCl solution?
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Answer:D.0.75
Answer d
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Rank the following compounds from highest boiling to lowest boiling. To rank items as equivalent, overlap them.
Olegator [25]

1-pentanol > 1-butanol > 1-chlorobutane > pentane

Explanation:

You my find in the attached picture the structures of the compounds, names and also the variation of their boiling points.

Alcohols have higher boiling points because they form hydrogen bonds between the molecules.

Learn more about:

boiling points in organic compounds

brainly.com/question/2153588

#learnwithBrainly

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Why does common table salt (NaCl) have a high melting point?
schepotkina [342]
The correct answer is c
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