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
sweet [91]
4 years ago
5

Fossils allow us to analyze how organisms have changed over time. In which type of fossil does the organism get pressured and he

ated and leaves behind an image of what that organism looked like as shown below,
Preserved remains


Carbon film


Mold and cast


Trace fossil
Chemistry
2 answers:
padilas [110]4 years ago
8 0

Answer:

carbon film duh

Mnenie [13.5K]4 years ago
3 0

Answer:

carbon film

Explanation:

You might be interested in
Why do men cheat on women?
AleksandrR [38]
Because they get tired of the women and always want to move on to somebody else to get some stuff just because the women must of have refused to give them something they wish not to give
6 0
4 years ago
Read 2 more answers
Determine the mass of oxygen necessary to react with 2.3 moles of HCl
Orlov [11]
4HCl + O₂  →  2Cl₂  +  2H₂O

mole ratio of HCl  :  O₂  is   4  :  1

∴ if moles of HCl = 2.3 mol

then mol of O₂ =  2.3 mol  ÷  4
                        = 0.575 mol

mass of O₂  =  moles of O₂ × molar mass of O₂
                    =  0.575 mol ×  (16 × 2) g/mol
                    =  18.4 g
5 0
3 years ago
Need help fixing my answer, help would be appreciated. I am supposed to complete and balance this equation for an acid-base reac
Gnoma [55]
Ca(OH)2 is only partially soluble in water

If you wrote it as Ca(OH)2(s) you may get a different response

The equation is balanced correctly, its the net ionic eq

hope this helps
5 0
3 years ago
(7th grade science question)
vesna_86 [32]

Answer:

id say mass

Explanation:

but i d k

4 0
3 years ago
The molar mass of a certain gas is 49 g. What is the density of the gas in g/L at STP?
snow_tiger [21]

Answer:

\boxed{\text{2.2 g/L}}

Explanation:

We can use the Ideal Gas Law to calculate the density of the gas.

   pV = nRT

      n = m/M           Substitute for n

   pV = (m/M)RT     Multiply both sides by M

pVM = mRT            Divide both sides by V

  pM = (m/V) RT

     ρ = m/V             Substitute for m/V

 pM = ρRT              Divide each side by RT

\rho = \frac{pM }{RT}

Data:

p = 1.00 bar

M = 49 g/mol

R = 0.083 14 bar·L·K⁻¹mol⁻¹

T = 0 °C = 273.15 K

Calculation:

ρ = (1.00 × 49)/(0.083 14 × 273.15) = 2.2 g/L

The density of the gas is \boxed{\text{2.2 g/L}}.

8 0
4 years ago
Other questions:
  • Calculate the volume of the acid formed when 100ml of 2.00M of Hcl is diluted to 0.050M
    14·1 answer
  • What is the concentration of hcl in the final solution when 65 ml of a 12 m hcl solution is diluted with pure water to a total v
    14·1 answer
  • Which change occurs when an atom in excited state returns to ground state? 1 energy is emitted 2energy is absorbed 3 the number
    12·2 answers
  • What is the that weird um simble mean in chemistry? I cant type the u the way its shown on my paper.
    14·2 answers
  • Evidence for the existence of neutrons did not come until many years after the discoveries of the electron and the proton. Give
    12·1 answer
  • At what distance would radiation cease completely
    9·1 answer
  • Why is the Statue of Liberty covered with a greenish bluish cover when it should be in brown color as it is made out of copper ?
    15·2 answers
  • What is the molarity of a stock solution if 60 mL were used to make 150 ml<br>of a .5M solution? ​
    5·1 answer
  • What is the first quartile of the following data set?
    6·1 answer
  • Provide the IUPAC names for
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!