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3 years ago

In addition to canyons,what other kinds of geologic formations might separate similar organisms

1 answer:

7 0

The people of Finland, who are secluded to some degree from the rest of the world by water, develop certain diseases due to the lack of genetic material from other ethnicities and races.

Physical barriers prevent fish from one stream from mating with fish from another stream, leading to a less varied gene pool among those fish. As time passes, the fish become unable to successfully mate with other groups.

A mountain range prevents two types of goat from mating, causing the gene pool to become less varied.<span>

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Suppose you throw a cube-shaped object and a spherical-shaped object of equal volume in the same volume of water. The ball sinks

brilliants [131]

I am pretty sure the answer is B but correct me if I'm wrong hope this helps.

6 0

3 years ago

Show me the periodic table

yawa3891 [41]

I think this is what you wanted, so good luck!

8 0

3 years ago

Write down the formula for B<br> example:<br> Hydrogen + Fluorine = Hydrogen Fluorine <br><br> help

Tom [10]

Answer:

P³⁻ + Cl⁻ --> PCl₃

Explanation:

PCl₃: phosphorus trichloride. prefix in front of chloride is "tri"–meaning three.

5 0

3 years ago

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Please help!!!! ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️

Bumek [7]

Polyatomic ions: $CH_3COO^-$ , $NO_3^-$ , $NH^+$ , $CN^-$ , $Li^+$ , and $OH^-$

Monatomic ions: $Ca^{2+$ , $O^{2-$ , and $Fe^{3+$

<h3>Monoatomic vs Polyatomic Ions</h3>

In chemistry, monoatomic ions are ions that consist of only a single type of atom. They are usually positive or negatively charged and are otherwise known as simple ions. Examples include $Ca^{2+$ , $O^{2-$ , and $Fe^{3+$

Polyatomic ions, on the other hand, are ions that consist of more than one atom, unlike monoatomic ions. The two or more atoms are covalently bonded and the entire structure behaves like a single chemical entity in reactions. Polyatomic ions are otherwise known as molecular ions.

Examples of polyatomic ions are $CH_3COO^-$ , $NO_3^-$ , $NH^+$ , $CN^-$ , $Li^+$ , and $OH^-$

Thus, from the diagram:

Polyatomic ions: $CH_3COO^-$ , $NO_3^-$ , $NH^+$ , $CN^-$ , $Li^+$ , and $OH^-$

Monatomic ions: $Ca^{2+$ , $O^{2-$ , and $Fe^{3+$

More on ions can be found here: brainly.com/question/14982375

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6 0

1 year ago

Assuming the substance is one of those listed in the table presented in this lesson, what is the identity of the substance?

zepelin [54]

The identity of the substance is Iron.

<h3>Properties of Iron</h3><h3>Chemical properties</h3>

The element iron has the atomic number 26 and the symbol Fe
Electronic configuration of Fe is [AR] 3d6 4s2
The atomic weight of Iron is 55.847
The element iron belong to the group VIII of the periodic table

It is the fourth most prevalent element in the crust of the world
It is a highly reactive element as it gets rusted readily in the moisture of air

<h3>Physical properties</h3>

It is a heavy metal in the first transition series
The color of iron is silvery grey
High malleability and ductility
It has a strong electrical conductivity.

Learn more about periodic table on

brainly.com/question/2140373

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8 0

1 year ago

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