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Luba_88 [7]
3 years ago
6

a student has a green dye mixture on which she performs a TLC experiment with a silica gel plate and acetone as the solvent. she

obtains a yellow spot with a Rf of 0.75 and a teal spot with an Rf of 0.45 explain her significance of her data.​
Chemistry
1 answer:
Stels [109]3 years ago
4 0
If he put green die into the 0.75 then it would not have make ants encounter into the internet.so ur answer is 54:
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Consider the model of the nitrogen atom.
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Answer:

1s2 2s2 2p3

Explanation:

we know that the number of electrons in an atom is equal to number of protons. So the number of electrons here is 7.

Using Moller chart, the electronic configuration is writen by the electrons first enterring into 1s then into 2s after 2p. The s orbital accomodates maximum of 2 electrons.

∴ for atomic no. 7 nitrogen atom, electronic configuration is 1s2 2s2 2p3.

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Someone pls help me I will make you brain
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Answer:

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Explanation:

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Which of the following is a factor in natural selection?
Vera_Pavlovna [14]

Answer:

D.

Explanation:

Although all of these answers are similar, it seems that all three are the answer. I am sorry if the answer ends up being B but I'm pretty sure the answer is D. Charles Darwin's evolution theory "evolved", get it, from the natural selection theory. The theory is described as "the process whereby organisms better adapted to their environment tend to survive and produce more offspring." However, some factors that effect natural selection are competition, selection and variation. I believe all three fit the answer and therefore I believe answer D is correct.

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The concentration from analysis question 5 represents the concentration in the 10.00 mL sample that was prepared in the volumetr
jolli1 [7]

Answer:

0.048 M

Explanation:

Note that the Concentration from Question 5= .00096 M

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CH3CH=NH2+>CH3CH2NH3+

Explanation:

If we look at the both species under review, we will realize that they are both amines hence they possess the polar N-H bond.

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CH3CH=NH2+ contains an sp2 hybridized carbon atom which is highly electronegative and further withdraws electron density from the N-H bond thereby leading to a greater acidity of CH3CH=NH2+ compared to CH3CH2NH3+

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