1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AURORKA [14]
3 years ago
10

How does soil form bare rock???

Chemistry
1 answer:
RSB [31]3 years ago
3 0
Weathering and erosion produce ever smaller rock particles which,

when mixed with dust and decayed organic matter over time , 

result in different types of soil . 

[hope this helps]



You might be interested in
The partial pressure of O2 in air at sea level is 0.21atm. The solubility of O2 in water at 20∘C, with 1 atm O2 pressure is 1.38
adell [148]

Answer:

1.21x10^{-3} M

Explanation:

Henry's law relational the partial pressure and the concentration of a gas, which is its solubility. So, at the sea level, the total pressure of the air is 1 atm, and the partial pressure of O2 is 0.21 atm. So 21% of the air is O2.

Partial pressure = Henry's constant x molar concentration

0.21 = Hx1.38x10^{-3}

H = \frac{0.21}{1.38x10^{-3} }

H = 152.17 atm/M

For a pressure of 665 torr, knowing that 1 atm = 760 torr, so 665 tor = 0.875 atm, the ar concentration is the same, so 21% is O2, and the partial pressure of O2 must be:

P = 0.21*0.875 = 0.1837 atm

Then, the molar concentration [O2], will be:

P = Hx[O2]

0.1837 = 152.17x[O2]

[O2] = 0.1837/15.17

[O2] = 1.21x10^{-3} M

7 0
3 years ago
How does evidence of chemical
Sliva [168]

Answer:

Changes in Properties Changes in properties result when new substances form. For instance, gas production, formation of a precipitate, and a color change are all possible evidence that a chemical reaction has taken place. ... Change in Color A color change can signal that a new substance has formed.

Explanation:

4 0
2 years ago
What is the economic importance of phosphorus in Canada or elsewhere in the world?
vladimir1956 [14]

white phosphorus is used in flares and explosives, so may be important in warfare, etc. Red phosphorus is used in matches (side of matches) and in fertilizers which are essential to growing plants. I don't know if that is economically important, but there are many ways that phosphorus benifit the economy. One downside on the economy is that phosphorus is one of the main ingredients in meth, which of course causes trouble for the economy ( law enforcement, medical, etc. )

6 0
3 years ago
Which of the following organisms in the soil food chain does not obtain energy directly from plants?
aliina [53]
<span>The organisms in the soil food chain that don't obtain energy directly from plants are protozoa.
</span>
3 0
3 years ago
Read 2 more answers
98 POINTS! MUST SHOW YOUR WORK for Brainliest!
Annette [7]

1 mole has 6.02*10^23 molecules in it.

1 nickel (II) chloride molecule, NiCl2, has 1 Ni atom in it.

so 1 mole of nickel (II) chloride molecule has 1 mole of Ni atom in it.

so 100 moles of nickel (II) chloride molecule has 100*6.02*10^23

= 6.02*10^25 Ni atom in it.


5 0
3 years ago
Read 2 more answers
Other questions:
  • Given the balanced equation representing a reaction:Cl2==&gt; Cl + Cl
    13·1 answer
  • (10 Points) It is thought that the strongest intermolecular forces between molecules of NO are
    9·1 answer
  • What color would you expect a weak base to turn the paper?
    13·1 answer
  • Combustion analysis of 0.300 g of an unknown compound containing carbon, hydrogen, and oxygen produced 0.5213 g of co2 and 0.283
    15·1 answer
  • When wood burns what 3 types of chemical energy is it?
    8·1 answer
  • What is the concentration of OH− and pOH in a 0.00072 M solution of Ba(OH)2 at 25 ∘C? Assume complete dissociation.
    15·1 answer
  • 1. Why does the Saint John River change direction?
    11·1 answer
  • Does ecstasy drug effect how long you live?
    5·1 answer
  • if a solid dissolves into a liquid, what does it mean about the properties of its molecules? Describe what it would look like on
    7·1 answer
  • Someone plz answer this
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!