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charle [14.2K]
3 years ago
11

Why all goals cannot be met in economics?

Chemistry
1 answer:
muminat3 years ago
4 0
The in the very definition of 'economics' explains why. Since, economics is a  social science that studies human behaviour, is a relationship *BETWEEN* ends and scarce means..
<span>
'ends' that is goals, and "scarce means" referred to the resources. So that is the economic problem, that there are *unlimited* wants but scarce resources. So the answer to this question is just: All goals cannot be reached because there are unlimited "goals", and few/limited resources.</span>
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What will happen to the wavelength of a wave if the frequency is left unchanged?
algol [13]
Someone. or something will get hurt
6 0
3 years ago
To what temperature must propane be cooled to remain a liquid at standard sea level?
Ugo [173]

Boils at -40 C (or F, same same) so colder than that it would be a clear stable liquid.

6 0
3 years ago
Read 2 more answers
If a sample contains 21.2 g N, how many moles of N does it contain?
cupoosta [38]

Hello!

If a sample contains 21.2 g N, how many moles of N does it contain?

0.66 mol

1.51 mol

14.01 mol

297.01 mol

We have the following data:  

m (mass) = 21.2 g

MM (Molar mass of Nitrogen) = 14 g / mol

n (number of moles) = ?

Formula:  

n = \dfrac{m}{MM}

Solving:  

n = \dfrac{m}{MM}

n = \dfrac{21.2\:\diagup\!\!\!\!\!g}{14\:\diagup\!\!\!\!\!g/mol}

\boxed{\boxed{n\approx 1.51\:mol}}\end{array}}\qquad\checkmark

Answer:

1.51 mol

_______________________________

I Hope this helps, greetings ... Dexteright02! =)

5 0
4 years ago
Read 2 more answers
Which of the following notations is the correct noble gas configuration for Li
Anettt [7]

Noble gas configuration for Li : [He]2s¹

<h3>Further explanation </h3>

In an atom, there are levels of energy in the shell and sub-shell

This energy level is expressed in the form of electron configurations.

Lithium with atomic number 3, then the electron configuration:

1s²2s¹

And for noble gas configuration or it can be called Condensed electron configurations :

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8 0
3 years ago
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Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements:
andrezito [222]

Answer: 1.875 moles

Explanation:

2 NaN3(s) → 2 Na(s) + 3 N2(g)

From the equation above, Sodium azide has a chemical formula of NaN3 while nitrogen gas has a chemical formula of N2.

Therefore, If on decomposition

2 moles of NaN3 produce 3 moles of N2

1.25 mol of NaN3 produce Z moles of N2

To get the value of Z, cross multiply

Z x 2 moles = 3 moles x 1.25 moles

2 moles•Z = 3.75 moles²

Divide both sides by 2 moles

2 moles•Z/2 moles = 3.75 moles²/2 moles

Z = 1.875 moles

Thus, 1.875 moles of N2 are produced by the decomposition of 1.25 mol of sodium azide

3 0
4 years ago
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