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
juin [17]
3 years ago
10

Stephanie has been doing research on how petroleum is formed. She says that oxygen must be present while the tiny plants and ani

mals are being compressed. Is Stephanie correct? 60 points paragraph response
Chemistry
2 answers:
Rzqust [24]3 years ago
5 0

Stephanie is incorrect, because fossil fuels form in the absence of oxygen. If oxygen is present, they cannot form.

zimovet [89]3 years ago
3 0

Stephanie is incorrect. Since fossil fuels form in the absence of oxygen, if oxygen is present, they cannot form.

(sample answer:)

You might be interested in
In one sentence, describe the general chemical structure of carbohydrates. In a second sentence, list the major biochemical func
Brums [2.3K]

Answer:

A carbohydrate is a compound composed of molecules of carbon (C), hydrogen (H), and oxygen (O) such that its general chemical formula is CH_2OH.

Biochemical functions of carbohydrates: Carbohydrates provide Stored Energy, Carbohydrates help to preserve Muscle and promote digestive health and Carbohydrates build macromolecules

Explanation:

A carbohydrate is a compound composed of molecules of carbon (C), hydrogen (H), and oxygen (O) such that its general chemical formula is CH_2OH.

Biochemical functions of carbohydrates:

1. Carbohydrates provide Stored Energy.

2. Carbohydrates help to preserve Muscle and promote digestive health.

3. Carbohydrates build macromolecules

6 0
3 years ago
30cm^3 of a dilute solution of Ca(OH)2 required 11 cm^3 of 0.06 mol/dm^. Hcl for complete neutralization. Calculate the concentr
Alenkasestr [34]

Answer: Thus concentration of Ca(OH)_2 in mol/dm^3  is 0.011 and in g/dm^3 is 0.814

Explanation:

To calculate the concentration of Ca(OH)_2, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ca(OH)_2

We are given:

n_1=1\\M_1=0.06mol/dm^3\\V_1=11cm^3=0.011dm^3\\n_2=2\\M_2=?\\V_2=30cm^3=0.030dm^3         1cm^3=0.001dm^3

Putting values in above equation, we get:

1\times 0.06mol/dm^3\times 0.011dm^3=2\times M_2\times 0.030dm^3\\\\M_2=0.011mol/dm^3

The concentration in g/dm^3 is 0.011mol/dm^3\times 74g/mol=0.814g/dm^3

Thus concentration of Ca(OH)_2 is 0.011mol/dm^3 and 0.814g/dm^3

4 0
3 years ago
d. Butanol has the chemical formula C4H,OH. Write and balance the chemical reaction for the combustion of butanol.​
valentina_108 [34]

Answer:

C4H9OH + 6O2 → 4CO2 + 5H2O

Explanation:

7 0
3 years ago
A dam is used to retain water. Retaining water can also lead to flooding. Which most likely would be a new societal issue result
pantera1 [17]
Habitat destruction of the ecosystem.
5 0
3 years ago
Read 2 more answers
Is the sky a solid,liquid,or gas
DochEvi [55]
The air in the sky and the clouds are gas, however some things in the sky [such as the sun/moon] are solid.
Hope that helped!
5 0
3 years ago
Other questions:
  • When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best
    15·1 answer
  • Our bodies are penetrated by x-rays but not by visible light. Is this because x-rays travel faster than visible light? Yes or no
    14·1 answer
  • space capsules operate with an oxygen content of about 34%. assuming a total pressure of 780 mm Hg in the space capsule, what is
    14·1 answer
  • _________ have small sized particles that do not settle out, cannot be filtered out, and do not scatter light.
    9·1 answer
  • Which statement correctly explains the molecular structure of water?
    14·2 answers
  • The following characteristics describe which of these terms? the substance is not uniform in appearance and each part of the mix
    5·2 answers
  • _____ determines the type of element an atom is. The number of neutrons The number of electrons The number of protons The number
    12·2 answers
  • What, if anything is wrong with the model of the solar system shown below ? Give me a big or small answer
    6·1 answer
  • Which statements are correct about Avogadro’s constant?
    13·1 answer
  • Place the following in order of decreasing radius.<br><br> Te2- F- O2-
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!