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
mrs_skeptik [129]
3 years ago
5

In an undisturbed stack of rock layers, each containing fossils of once-living organisms, where would some evidence of the most

ancient life forms MOST LIKELY be found?
Chemistry
2 answers:
zubka84 [21]3 years ago
5 0
Some evidence of the most ancient life forms would most likely be found in fossils!
julia-pushkina [17]3 years ago
5 0

Answer: In the bottom layer.

Explanation:

The rule of the fossil formation is that the first layer that is formed is at the bottom of the stack. The second layer contains less organism than the first layer.

This is the principle of super position that the first layer formed will be at the bottom and the newest layer formed will be at the top of the soil in the stacking.

Hence, most of the fossils will be found in the oldest layer of the soil which means at the bottom of the soil.

You might be interested in
identify each material as a compound or a mixture. Caffeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed rat
vitfil [10]
Answer: caffeine is a compound.

Explanation:

1) As stated c<span>affeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed ratio.

2) The definition of compound is a pure substance formed by chemical bonding of two or more fifferent elements. That means a defined ratio of the elements in the compound, which conferes uniform and equal properties to every part of the compound.

Some examples of compounds are salt (NaCl), water (H2O), vinegard (CH3 COOH).

A mixture combines several elements or compounds, not bonded by chemical bonds but mixed in ratios which may vary.
</span>
7 0
3 years ago
Read 2 more answers
QUESTION TWO
igomit [66]

Answer: The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century. It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.

Explanation:

Hope this helps. :)

3 0
3 years ago
Trisha and her lab partner filled a beaker with 150 milliliters of a 0.10 M HCl solution. How many moles of HCl are in the beake
oksian1 [2.3K]
M=mol/liter
We know that we have 150ml=.15 L and .1 mol of HCl
Rearranging the molarity equation, we get
mol=M*l
mol=(.15)(.1)
=.015 mol
7 0
3 years ago
Read 2 more answers
A sample of PCl5(g) was placed in an otherwise empty flask at an initial pressure of 0.500 atm and a temperature above 500 K. Ov
tia_tia [17]

Answer:

Kp = 0.81666

Explanation:

Pressure of PCl₅ = 0.500 atm

Considering the ICE table for the equilibrium as:

                     PCl₅ (g)      ⇔          PCl₃ (g) +       Cl₂ (g)

t = o               0.500

t = eq                -x                             x                      x

--------------------------------------------- --------------------------

Moles at eq: 0.500-x                       x                      x

       

Given the pressure of PCl₅ at equilibrium = 0.150 atm

Thus, 0.500 - x = 0.150

x = 0.350 atm

The expression for the equilibrium constant is:

K_p=\frac {P_{PCl_3}P_{[Cl_2}}{P_{PCl_5}}  

So,

K_p=\frac{x^2}{0.500-x}  

x = 0.350 atm

Thus,

K_p=\frac{{0.350}^2}{0.500-0.350}  

<u>Thus, Kp = 0.81666</u>

7 0
3 years ago
can someone solve me some papers I don't have time and I need to submit today please I will make you brilliant ​
dem82 [27]

Answer:

submit the papers onto this platform and we will try to help out.

6 0
3 years ago
Other questions:
  • A pure substance is found to be a good conductor of electricity in both its solid and liquid
    6·1 answer
  • ) Each of the following is a noncovalent interaction EXCEPT: A) a hydrogen bond. B) a carbon-hydrogen bond. C) the interaction b
    12·1 answer
  • A limestone plateau has no surface water. All the water is pulled underground through cracks and crevices in the surface. What m
    11·1 answer
  • Calculate the heat energy released when 24.1g of liquid Mercury at 25 degrees celsius is converted to solid? mercury.; Steve I g
    10·1 answer
  • Please helpppppppppppppppppppppppp
    14·1 answer
  • Metamorphic rocks that melt in a hot fluid can re-crystallize into a different form of rock. true or false
    9·1 answer
  • How many grams of hydrogen gas would be needed to form 8.0 grams of water
    6·1 answer
  • What is the mass of glyphosate
    11·1 answer
  • 12. Which element is a metalloid?<br> 1) AI<br> 2) Ar<br> 3) As<br> 4) Au
    9·1 answer
  • Comment se nomme le processus qui permet à une cellule- mere de donner deux cellules-filles
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!