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Lady_Fox [76]
2 years ago
15

What is the electron configuration of a ground-state cr atom? 1s22s22p63s23p64s14d5 1s22s22p63s23p64s23d4 1s22s22p63s23p63d6 1s2

2s22p63s23p64s24d4 1s22s22p63s23p64s13d5\
Chemistry
1 answer:
prisoha [69]2 years ago
8 0

The electronic configuration of a ground-state Cr-atom :

1s²2s²2p⁶3s²3p⁶4s²3d⁴

<h3><u>What are electronic configurations?</u></h3>

The arrangement of an atom's or molecule's (or other physical structure's) electrons in their atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry. For instance, the neon atom's electron configuration is 1s² 2s² 2p⁶, which means that 1, 2 and 6 electrons, respectively, are present in each of the 1s, 2s, and 2p subshells.

According to electronic configurations, each electron moves individually within an orbital while being surrounded by an average field produced by all other orbitals. Slater determinants or configuration state functions are used to mathematically characterize configurations.

To view more about electronic configurations, refer to:

brainly.com/question/6253020

#SPJ4

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How many moles are in 43.5 g of sodium hydroxide (NaOH)?
Makovka662 [10]

Answer:

1.09 moles of NaOH

Explanation:

First of all, to calculate moles, you need to find the molar mass of NaOH.

Let us first find the molar mass of NaOH then.

Na = 23.0 amu

O = 16.0

H = 1.0

They are 1 nitrogen atom, 1 oxygen atom, and one hydrogen atom.

So do this.

23.0(1) + 16.0(1) + 1.0(1) = 40 g/mol.

Now use dimensional analysis to show your work

43.5 g of NaOH * 1 mol of NaOH / 40 g/mol of NaOH

The grams cancel out.

43.5 / 40.0 = 1.0875

Use sig figs and round the answer to the nearest hundredths place.

1.0875 = 1.09

So the final answer is 1.09 moles of NaOH

Hope it helped!

3 0
3 years ago
Classify the statements pertaining to elements and compounds as either true or false
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TRUE

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The heisenberg uncertainty principle status that
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3 years ago
Why does water with salt in it freeze much more slower than water without it ? Explain
serg [7]
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So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered. 

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4 0
3 years ago
Read 2 more answers
Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2.
Sergio [31]
The answer is -60.57 = -60.6 KJ.
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Hf Ca(OH)2 = -986.2
<span>Hf H2O = -285.83
Now,

</span><span>add them up. 226.77 - 986.2 + (2*285.83) = -187.77 
</span><span>Add back the total enthalpy that is given in the question
 -187.77+127.2 = -60.57 </span>
8 0
3 years ago
Read 2 more answers
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