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Aleksandr-060686 [28]
2 years ago
6

Which traits are polygenic? Select three options.

Chemistry
2 answers:
denis-greek [22]2 years ago
7 0

Answer:

Hair color

Eye color

Birth weight

Explanation:

Pavel [41]2 years ago
3 0

Answer:

is there an answier choice u have to choose from or no

Explanation:

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13 This word describes the circulatory system that provides nutrients and oxygen to living cells of the body.
Nina [5.8K]

Answer: Cardiovascular System

Explanation:

This involves your heart, blood, veins, and arteries

4 0
3 years ago
The "d" subshell can hold a maximum of ________ electrons.
Verizon [17]
The d subshell has 5 orbitals (with each being able to hold two electrons.  As such, the d orbital can hold a maximum of 10 electrons.

<span>The "d" subshell can hold a maximum of _TEN_ electrons.</span>
5 0
2 years ago
Suppose that, from measurements in a microscope, you determine that a certain layer of graphene covers an area of 1.50μm2. Conve
Alex73 [517]
The answer is 1.5*10^-12 square meters. For a detailed calculation, please refer to the attachment.
Download docx
7 0
3 years ago
4. Find the pH at each of the following points in the titration of 25 mL of 0.3 M HF with 0.3 M NaOH. The Ka value is 6.6x10-4 a
yawa3891 [41]

Explanation:

Since HF is a weak acid, the use of an ICE table is required to find the pH. The question gives us the concentration of the HF.

HF+H2O⇌H3O++F−HF+H2O⇌H3O++F−

Initial0.3 M-0 M0 MChange- X-+ X+XEquilibrium0.3 - X-X MX M

Writing the information from the ICE Table in Equation form yields

6.6×10−4=x20.3−x6.6×10−4=x20.3−x

Manipulating the equation to get everything on one side yields

0=x2+6.6×10−4x−1.98×10−40=x2+6.6×10−4x−1.98×10−4

Now this information is plugged into the quadratic formula to give

x=−6.6×10−4±(6.6×10−4)2−4(1)(−1.98×10−4)−−−−−−−−−−−−−−−−−−−−−−−−−−−−√2x=−6.6×10−4±(6.6×10−4)2−4(1)(−1.98×10−4)2

The quadratic formula yields that x=0.013745 and x=-0.014405

However we can rule out x=-0.014405 because there cannot be negative concentrations. Therefore to get the pH we plug the concentration of H3O+ into the equation pH=-log(0.013745) and get pH=1.86

6 0
2 years ago
The first chemists, philosophers like, Aristotle were from which country?
qwelly [4]

Answer:

greece

Explanation:

aristole was particularly from stagria, greece. but most early philosophers are from greece

5 0
2 years ago
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