What could be an electron configuration of Na in the excited state?

Chemistry

1 answer:

olasank [31]3 years ago

4 0

Answer:

The excited state electron configuration shows when an electron is excited and jumps into a higher orbital. For example, sodium in its excited state would have an electron configuration of 1s2 2s2 2p6 3p1, compared with its ground state of 1s2 2s2 2p6 3s1.

Explanation:

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MrRissso [65]

Answer:

A is a physical change, no atoms are being lost its still in it original form

B is a chemical change, it is losing atoms and changing into a new substance

Explanation:

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3 years ago

Which of the following demonstrates a poor internal control procedure?

Alex_Xolod [135]

Answer: The bookkeeper makes cash deposits and records journal entries related to cash, while the treasurer prepares the bank reconciliation.

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3 years ago

A solid piece of aluminum (51.0 g) was added to a solution of sodium hydroxide (84.1 g) in water, A balanced equation for this r

EastWind [94]

$M_{Al}=26,98\frac{g}{mol}\\
m=51g\\\\
n=\frac{m}{M_{Al}}=\frac{51g}{26,97\frac{g}{mol}}\approx1,89mol\\\\\\
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n=\frac{m}{M_{NaOH}}=\frac{84,1g}{39,4\frac{g}{mol}}\approx2,14mol$

2 NaOH(aq)+ 2 Al(s)+ 2 H₂O → 2 NaAlO₂(aq)+ 3 H₂(g)
 2mol : 2mol : 3mol
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A) Al

B)

$M_{NaOH}=39,4\frac{g}{mol}\\
n=0,25mol \Rightarrow \ \ \ m=n*M_{NaOH}=0,25mol*39,4\frac{g}{mol}=9,85g$

C)
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3 years ago

In the following reaction, eight moles of sodium hydroxide is broken down into four moles of sodium oxide and four moles of wate

maxonik [38]

Answer:

21.344%

Explanation:

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The percent error = [(Actual -Experiment)/Actual]*100%

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4 years ago

Given the balanced equation representing a reaction:

Vilka [71]

(2) a base because they accept H+ ions. NH3 is the conjugate base of NH4+.

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