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eduard
4 years ago
15

Scientists can learn about the chemical composition of stars by analyzing the light they transmit true or false?

Chemistry
1 answer:
Serhud [2]4 years ago
4 0
Yeah it is true buddy boy. Explanation or no?
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When an electron is displaced in a semiconductor, the hole that's left behind is
geniusboy [140]
<span>answer is A : attracted to the negative terminal of the voltage source
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5 0
4 years ago
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Which is a characteristic of mixtures?
siniylev [52]

Answer:

The correct answer is "They can be separated by physical processes"

Explanation:

The definition of Mixtures is <em>the blending of two or more dissimilar substances</em>.

Mixtures can be divided into those that are homogeneous or heterogeneous meaning that they can be distributed evenly or can't be distributed evenly.

6 0
4 years ago
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For the following species, draw a Lewis structure for one important resonance form. Include all lone pair electrons and assign f
Gemiola [76]

Answer:

The Lewis structures are shown in the figure

Explanation:

The lewis structure will be drawn using following steps

i) we will calculate the total number of valence electrons in the molecule

ii) will assign one bond (two electrons in between two atoms)

iii) then distribute the rest of the valence electrons as lone pair or shared pair based on completion of octet.

The structure of each molecule is given in the figure.

Valence electrons:

NO_{2}^{+}

V.E = 5 +(2)6-1=16

NO_{2}F

V.E =5 +(2)6+7=24

6 0
3 years ago
Improper or incomplete usage of citations can lead to
lys-0071 [83]
Improper or incomplete usage of citations can lead to plagiarism.

Without proper usage of citations, teachers or whoever is looking over your work, may think because you do not hold acceptable citations, that they will think it is plagiarized. Plagiarism is taking another person's work or ideas without citing it. Citation or direct quotation could save you from plagiarism. 
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#1: what do you notice about your skin cells? Write your observations below:<br> se up)
ivann1987 [24]

Answer:

I noticed that my skin cells have little tiny holes all over the area I am looking at. I also notice a little bit of dry skin on the skin cell. Not only do I see little holes and dry skin but I also see different types of skin. Rough skin and smooth skin. That is what I see.

Explanation:

8 0
3 years ago
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