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just olya [345]
3 years ago
7

Evidence for evolution reveals that closely related organisms have many (blank)characteristics.​

Chemistry
2 answers:
castortr0y [4]3 years ago
4 0

Answer:

Shared

Explanation:

Mamont248 [21]3 years ago
3 0

Evidence for evolution reveals that closely related organisms have many similar  physical and genetic characteristics.

Explanation:

Closely related organisms have similar physical features and genetic sequences.

When both the physical and genetic features are similar, these organisms are referred to as homologous structure.They are similar, as their evolutionary path is the same.

Example: bones from the birds and arms of the humans, have evolved more or less similarly so they are homologous structure.

In other cases, the organisms might be closely related, but their genetic structure might have a slight change. Due to this change there might be difference in the physical structure.

Example: the chimpanzee and  human have different physical structure even though their evolution have taken the same path and they are closely related.

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Complete the three words. The oxidation state tells you how many electrons an atom has g....................... , l.............
fgiga [73]

Answer:Gained, Lost , Shared

Explanation:

The oxidation state tells you how many electrons an atom has GAINED.................. , LOST....................... , or SHARED........................ , in forming a compound.

Oxidation state is defined as the  the total number of electrons that an atom gains or loses when forming a chemical bond with another atom.

----To form an ionic bond for example in NaCl, Na, with 11 electrons and one valence electron in its outermost shell donates or lose that valence electron to Chlorine  with 17 electron and 7 in its outermost shell. Therefore Sodium, Na acquires the +1 oxidaton state to become stable and Chlorine acquires the -1 oxidation state  to become stable  forming the  NaCl compound.

To form a covalent compound, There must be sharing of electrons between atoms.For example, in PCl3,  The  phosphorous atom with atomic number 15 shares its three unpaired electrons with the single valence electrons of three chlorine atoms. making the four molecules to attain stability with  Phosphorous having +3 and the chlorine atoms having -1 oxidation states

8 0
3 years ago
Are the answers correct? if not please help fix them
Serggg [28]

Answer:

Looks like they're all right

8 0
3 years ago
The s orbital can hold
malfutka [58]

Answer:

B. Two electrons

Explanation:

Since the S orbital is closest to the nucleus and it only has one orbital, it can only hold 2 electrons

7 0
3 years ago
Read 2 more answers
Which of the following demonstrates a double-replacement reaction?
Volgvan
A: Na3PO4 + MnCl2 > Mn3(PO4)2 + NaCl
6 0
3 years ago
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bottle contains 425 mL of insulin at a concentration of 50.0 mg/mL . What is the total mass of insulin in the bottle?
Ulleksa [173]
Hey there!

C = m
     ------
       V


50.0 mg/mL =      mass
                         ---------------
                             425 mL

mass =   50.0 * 425

mass => 21250 mg
3 0
3 years ago
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