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Colt1911 [192]
3 years ago
12

How have organisms changed over time, according to the fossil record?​

Chemistry
1 answer:
Yuri [45]3 years ago
6 0

Answer:

As the world changes, plants and animals change with it. Aside from a few living fossils, the species we see today are very different from species that lived in the past. Thus, the fossil record can be used to show that organisms changed to meet new conditions. This is the result of evolution of species over time.

hope this helps

have a good day :)

Explanation:

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Answer:

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Explanation:

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5 0
3 years ago
How many atoms of carbon or one mole of glucose
professor190 [17]

Answer:

6 carbon atoms

Explanation:

For instance, we can say that one molecule of glucose has 6 carbon atoms, or we can say, equivalently, that one mole of glucose has 6 moles of carbon atoms

3 0
3 years ago
The formation of CsCl from Cs(s) and Cl2 (g) involves the following steps:
scoray [572]

Explanation:

1) Cs(s)\rightarrow Cs(g)

Energy will be absorbed by the Cs(s) to get converted into Cs(g). In order to break the strong association of particles present in solid to convert it into gaseous state energy will be needed. So, energy will be absorbed by the Cs solid in this reaction.

2) \frac{1}{2}Cl_2(g)\rightarrow Cl(g)

Energy will be absorbed by Cl_2 gas in order to break bond between two Cl atoms to form isolated(alone) single chlorine atom.So, the energy will be absorbed by the chlorine gas molecule in this reaction.

3) Cs(g)\rightarrow Cs^+(g)+e^-

Energy will be absorbed by the Cs(g) to get converted into Cs^+(g) cation. In order to remove an electron from the outer most shell of Cs atom energy will be required by Cs atom, So, energy will be absorbed in this reaction.

4) Cl(g)+e^-\rightarrow Cl^-(g)

Energy will get release in formation of Cl^- anion from Cl atom in gaseous state. Chlorine atom need one electron to attain noble gas configuration. So, when an electron is added to the outer most shell of chlorine it attains stability of fully filled outermost shell by which it releases energy on addition of an electron.

5) Cs^+(g)+Cl^-(g)\rightarrow CsCl(s)

Energy will get release on formation of CsCl(s) fromCs^+ cation and Cl^- anion. since both are oppositely charged ion and due to strong electrostatic interaction will get converted into stable molecule of CsCl (s) with release in an energy.

6 0
3 years ago
A material has a volume of 63.0 cm3 and a mass of 28 grams.  What is the density of the material in g/cm3 to the correct number
dimaraw [331]

Answer:

0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).

Explanation:

  • Knowing that:

<em>d = m/V,</em>

where, d is the density of the material (g/cm³).

m is the mass of the material (m = 28 g).

V is the volume of the material (V = 63.0 cm³).

<em>∴ d = m/V </em>= (28 g)/(63.0 cm³) = <em>0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).</em>

7 0
3 years ago
Question 3
hammer [34]

Answer:

in the excited state

Explanation:

Because in excited state an atom has more energy

5 0
3 years ago
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