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Amanda [17]
3 years ago
14

Why are familiar objects such as pens and paper clips not commonly counted in moles?

Chemistry
2 answers:
Ivanshal [37]3 years ago
8 0
The number is far to big. A single mole of jelly beans would take up the whole planet earth. So imagine the numbers we would have to go into!
blondinia [14]3 years ago
8 0

One mole is equal to avagadro number

Avagadro's number = 6.023 X 10^23

So it is a big big number. For pens or paper clips we do not need such big unit to express any figure.

Hence we cannot count the normal pens or pencils type macro objects in terms of moles

The mole is used for atomic level particles where in a small amount such large number of identities are present

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Answer:Temperatures Cool With Increasing Latitude

Explanation:

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What is the ratio between the coefficients of any two substances in a balanced equation?
ICE Princess25 [194]
In a balanced chemical equation, we have two numbers that indicate two different factors. The definitions of these numbers are as follows:

1- Molar ratio: This ratio represents the ratio between the number of moles of any two substances in the balanced equation

2- The coefficients in the balanced chemical equation: These numbers represent the numbers of particles of each of the substances taking place in this chemical equation.
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6 0
2 years ago
Read 2 more answers
C. identify a set of four possible quantum numbers for the circled electron in manganese (mn). (there is more than one correct a
steposvetlana [31]
Although you have not provided the circled electron, I can help you with a wide explanation.

1) Atomic number of manganese is 25. That means that it has 25 protons and 25 electrons.

2) Those 25 electrons are distributed (electron configuration) as per the quantum rules:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵

3) The most reasonable is that you have been asked to give the possible quantum numbers for an electron in the 4s or 3d.

4) Those are 7 electrons and these are their possible sets of quantum numbers:
i) For the two electrons in 4s: 
n is the main energy level so n = 4
l tells the kind of orbital, which is s, so l = 0
ml is also 0 (it can be from -l to + l, so given that l i s0, ml is 0)
ms: one is +/12 and the other is -1/2 (this is the spin number).


ii) For the 5 electrons in 3d

n = 3
l can be 0, 1, or 2
if l = 0, then ml = 0

if l = 1, then ml can be -1, 0 , or 1 (from - l to + l)


ms can be either +1/2 or - 1/2 (spin)
5 0
2 years ago
A balloon has a volume of 1.75L at a temperature of 298K. What will be the volume of the balloon if you take it out into the win
lozanna [386]

Answer:

1.52 L

Explanation:

P1V1T2=V2P2T1

V2=V1T2/T1

Fill in with given values then solve

We can check this by knowing that V and T at constant P have a proportional relationship. Hence, this is correct.

- Hope that helped! Please let me know if you need further explanation.

7 0
2 years ago
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