What are the main feature of chemistry explain in details

2 answers:

7 0

The main features of chemistry is the periodic table that is the known thing for chemistry but it also has other features

Ratling [72]2 years ago

5 0

Periodic table is the main feature of chemistry

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Circle all that apply for an anion.

Delvig [45]

Answer:

b. d. f. h

Explanation:

Anions are negatively charged. They are usually non metals with few exceptions. They need to gain electrons in order to form and they are always listed after cation in a compound.

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Which of the following is not a source of air pollution related to human activities

tangare [24]

Radon is <span>not a source of air pollution related to human activities</span>

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At a certain temperature the vapor pressure of pure chloroform (CHCl3) is measured to be 91. torr. Suppose a solution is prepare

OleMash [197]

Answer:

$P_{CCl_4}=52.43torr$

Explanation:

Hello there!

In this case, sine the solution of this problem require the application of the Raoult's law, assuming heptane is a nonvolatile solute, so we can write:

$P_{CCl_4}=x_{CCl_4}P_{CCl_4}^{vap}$