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Degger [83]
3 years ago
5

The human hand has a unique adaptation called....?

Chemistry
1 answer:
topjm [15]3 years ago
5 0

Answer:

Humans, as well as monkeys, gorillas, and other primates, have a hand that can grip and grasp objects because they have an opposable thumb. The earliest primates were arboreal (they climbed trees), and so having grasping hands was an advantage in this environment.

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The average mass of a born atom is 10.81 if you were able to silate a single boron atom what is the chance that you would random
irakobra [83]
20.98 hope that helps
6 0
3 years ago
Which element has chemical properties that are most similar to the chemical properties of fluorine?
Vera_Pavlovna [14]
The answer is (2) chlorine. We can figure out some rules of properties of elements from the periodic table of elements. One of the important rule is that the elements which belongs to the same group has the similar properties. Fluorine and chlorine belong to the same group.
3 0
3 years ago
Read 2 more answers
PLSS HELP<br> Which neutral element can be described by this Photoelectron Spectrum?
insens350 [35]

Answer:

A. The spectrum shows a single electron in the 2p subshell.

Explanation:

8 0
3 years ago
What is the mass of 4.5 moles of Cu(NO3)2?
Tatiana [17]

Answer:

The mass of 4.5 moles of Cu(NO3)2 is 843.55g

Explanation:

Mass = moles x Molar mass

Mass = 4.50(187.55)

         = 843.97g

6 0
3 years ago
Draw a Lewis structure for C2H3Cl. Show all unshared electron pairs. None of the atoms bears a formal charge, and all atoms have
aleksklad [387]

Answer:

See picture below

Explanation:

To do this, we first need to know how are the bonds in this molecule are. To do so, let's calculate the number of insaturations in the molecule:

n°I = C+1 - (H-N+X)/2

These numbers indicate if the molecule has double bond, triple bond, ring, cyclo, among other options:

n°I = 3 - (3+1)/2

n°I = 1

As it's a very small molecule, we can assume this molecule only have a double bond, and it's an alkene.

So the lewis structure, shows the electrons and the bonding, and also shows the unshared electron pairs, depending on how much electron have each molecule.

In the case of carbon:

[C] = [He] 2s2 2p2 ----> 4 electrons

[H] = 1s1 ----> 1 electron

[Cl] = [Ne] 3s2 3p5 ----> 7 electrons.

Therefore, we also know that Carbon has a double bond, so, the main molecule would have something like this:

C = C

so next to the carbons, we can put two hydrogens and in the other carbon, the chlorine and the remaining hydrogen.

See picture below for structure:

7 0
3 years ago
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