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VARVARA [1.3K]
3 years ago
13

Is pluto a planet CER

Chemistry
1 answer:
ANEK [815]3 years ago
4 0
This has been an ongoing debate between scientists and astrologers. It is actually classified as a dwarf planet.

Hope this helps!
~Brooke
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How many moles of HCl are there in 75.0 mL of 0.325 M HCI?​
dangina [55]

Answer: The moles of HCl are 0.0244

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute = ?

V_s = volume of solution in ml

Now put all the given values in the formula of molality, we get

0.325=\frac{moles\times 1000}{75.0}

moles=0.0244

Therefore, the moles of HCl are 0.0244

3 0
3 years ago
Is it necessary that compounds be colored to be separated by chromatography?
blondinia [14]
No itt is not required
4 0
3 years ago
Why is the air in a jet aircraft flying at high altitudes pressurized? *
saw5 [17]

Answer:

Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

Explanation:

-Air becomes increasingly thinner with increasing altitudes.

-As such, oxygen becomes limited at higher altitudes and makes it difficult or almost impossible to breath  a condition called hypoxia.

-Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

6 0
4 years ago
Researchers can use solvents to extract, or break apart, components of a cell or tissue to separate and/or isolate components. I
Tems11 [23]

The cell membrane which is more fat permeable will be present at the end of the process.

Solvent extraction is a very important method if separating mixtures. The principle of solvent extraction is based on the idea of like dissolves like. A substance dissolves in the component of the system in which it is most soluble.

If a cell extract is dissolved in a nonpolar solvent, the cell membrane which is mostly permeable to nonpolar molecules will dissolve most in the solvent.

Learn more:brainly.com/question/14396802

6 0
2 years ago
What is the electron configuration of bromine in this oxidation state? Express your answer in condensed form, in order of increa
Ymorist [56]

Answer:

[Ar]3d^{10}4s^{2}4p^{6}

Explanation:

Electronic Configuration of Bromine : [Ar]3d^{10}4s^{2}4p^{5}

At oxidation state -1, electronic Configuration of Bromine : [Ar]3d^{10}4s^{2}4p^{6}

8 0
3 years ago
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