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tekilochka [14]
3 years ago
9

How can a scientist make a solution using salt and water?

Chemistry
2 answers:
Ray Of Light [21]3 years ago
7 0
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.
Arisa [49]3 years ago
6 0

Answer:

by boiling water and add the salt

Explanation:

because salt dissolves better if mixed with hot water which makes the process faster and effective

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Which member of each pair is the stronger base? part a ethylamine or aniline ethylamine or aniline ethylamine aniline request an
Vladimir79 [104]
Lowery-Bronsted theory is applied here. Acc. to this theory Base accepts protons and Acids donate proton.

Part 1: 
Aniline is less basic than ethylamine because the lone pair on nitrogen (which accepts proton) is not localized. It resonates throughout the conjugated system of phenyl ring. Hence due to unavailability of electrons for accepting proton it is less basic compare to ethylamine. In ethyl amine the lone pair of electron is localized and available to abstract proton.

Part 2:
In this case the alkyl groups attached to -NH₂ (in ethylamine) and -O⁻ (in ethoxide are same (i.e. CH₃-CH₂-). Ethoxide is more basic than ethylamine because ethoxide is a conjugate base of ethanol (pKa value of ethanol = 15.9 very weak acid) and the conjugate base of weak acid is always a strong base. Secondly, the oxygen atom more Electronegative than Nitrogen atom can attract more electron cloud from alkyl group as compared to Nitrogen in ethylamine. Hence, oxygen in ethoxide attains greater electron cloud than the nitrogen in ethylamine. Therefore, it is more basic than ethylamine.

5 0
3 years ago
Which quantity can be calculated using the equation E = mc2?
lidiya [134]
Energy, mass, and the speed of light squared.
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Hope this helped! :)
5 0
3 years ago
Read 2 more answers
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HACTEHA [7]

Answer:

1.60×10¹⁴ s⁻¹

Explanation:

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4 0
3 years ago
Help can you match the answers to the definition PLZ Need this ASAP 30 points
Alchen [17]

Answer:

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8 0
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stiks02 [169]

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