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Fed [463]
4 years ago
10

How did Mendeleev arrange the known elements?

Chemistry
2 answers:
Agata [3.3K]4 years ago
4 0
In order of relative atomic mass.
klemol [59]4 years ago
4 0
Mendeleev arranged elements in rows in increasing order according to their atomic number, while also grouping elements with similar chemical properties in columns.
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Which particle changes to create an isotope of an atom? <br> A.proton<br> B.neutron<br> C.electron
Dovator [93]

Answer:

A

Explanation:

proton

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Where would we most likely find water in the form of a gas?
KatRina [158]
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Quickly Please!!!!!!
FrozenT [24]

Answer:

n=4.1mol

Explanation:

Hello,

In this case, we can use the ideal gas equation:

PV=nRT

So we know the temperature, pressure and volume, therefore we can easily compute the required moles as shown below:

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3 years ago
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How are distillation and reverse osmosis alike?
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5 0
4 years ago
When can all the coefficients in a balanced equation represent volume ratios? when reactants and products are solids at stp when
Alexxx [7]

Answer: when reactants and products are gases at STP.


Justification:


1) STP stands for standard temperature (0°) and pressure (1 atm).


2) According to the kinetic molecular theory of the gases, and as per Avogadro's principle, equal volumes of gases, at the same temperature and pressure, have the same number of molecules.



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8 0
3 years ago
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