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Vlada [557]
2 years ago
8

Which of the following represents the electron configuration of s⁻?

Chemistry
1 answer:
GrogVix [38]2 years ago
4 0

Answer:

[Ne] 3s² 3p⁴

Explanation:

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What is made when a salt is dissolved in water?
Xelga [282]

Answer:

D. A solution.

Explanation:

"Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution."

3 0
2 years ago
A 0.307-g sample of an unknown triprotic acid is titrated to the third equivalence point using 35.2 ml of 0.106 m naoh. calculat
Jet001 [13]
Triprotic acid is a class of Arrhenius acids that are capable of donating three protons per molecule when dissociating in aqueous solutions.  So the chemical reaction as described in the question, at the third equivalence point, can be show as: H3R + 3NaOH ⇒ Na3R + 3H2O, where R is the counter ion of the triprotic acid. Therefore, the ratio between the reacted acid and base at the third equivalence point is 1:3. 
The moles of NaOH is 0.106M*0.0352L = 0.003731 mole.  So the moles of H3R is 0.003731mole/3=0.001244mole.
The molar mass of the acid can be calculated: 0.307g/0.001244mole=247 g/mol.
6 0
3 years ago
Please help? Liquid, Chemical Properties, Compounds or Products?​
Rainbow [258]

Answer:

They are compounds.

Explanation:

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3 0
2 years ago
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Mario wants to split a beam of white light into different colors. Which tool will work best?
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The correct answer --> A
7 0
3 years ago
a fraction collected during distillation ethanol-water what is the mass of ethanol that is present in this fraction
AURORKA [14]

Answer:

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because the liquid with high boiling point is going to be collected the first

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