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
myrzilka [38]
3 years ago
9

FASSST!!!physical science!!!!!

Biology
1 answer:
jeka943 years ago
7 0

Answer

#21

2 for NaF

1 For Br2

2 For NaBr

1 for F2

#22

1 for P4

3 for O2

2 for P2O3

Explanation:

You might be interested in
What does a centromere hold together?
Rudiy27

Answer:

Structure in a chromosome that holds together the two chromatids

Explanation:

8 0
3 years ago
"Which term correctly identifies the process by which molecules move through the dialysis tube membrane?
SSSSS [86.1K]
I think the correct answer from the choices listed above is option 3. The term that correctly identifies the process by which molecules move through the dialysis tube membrane would be diffusion. <span>The molecules move from a region where they are in high concentration to a region where they are in low concentration.</span>
5 0
3 years ago
Which gas does not occur naturally in the atmosphere in any amount but was solely created by human activity? Support your answer
SpyIntel [72]

Answer:

Carbon monoxide.

Explanation:

Carbon monoxide is a gas that consists of an oxygen and a carbon to be able to fulfill the complete molecule, it is a potentially dangerous gas for life on this earth.

On the other hand, what differentiates it from carbon dioxide is that it has two oxygens that are coupled with a carbon to fulfill the complete molecule.

Both gases are pollutants, and produced by man, it is considered that these in high partial pressures in the atmosphere generate a mortal potential for humans since they have more affinity with the hemoglobin protein that is the human gas transporter par excellence, the which oxygenates the tissues.

If the oxygen drops in partial pressure and these toxic gases increase, the hemoglobin having a higher affinity will bind to them and toxify the human body, preventing oxygenation.

7 0
3 years ago
What is the greatest advantage of using different methods that result in the same outcome?
viva [34]

The advantages of using mixed method are, the pros and cons can be identified and compared for each method. Thus option B is correct.

<h3>What are advantages of using mixed method?</h3>

Mixed methods in research is an advanced form which is basically a combination of quantitative research and qualitative research.

It can help the researcher to gain a more clear and complete picture as it integrates benefits of both methods.

Mixed methods research is used in the behavioral, health, and social sciences, societal research.

Qualitative research has smaller sample size, so mixed methods research is applied for the comparative strength of externally valid quantitative research.

Mixing methods allowed to get findings in detail to the conclusion.

Using mixed methods from different data on same subject can give more credible results.  

Thus option B is correct.

Learn more about mixed method, here:

brainly.com/question/28077230

#SPJ2

5 0
2 years ago
Read 2 more answers
3/10
tresset_1 [31]

Answer: It's known as the continental drift :)

Explanation: "Pangea's existence was first proposed in 1912 by German meteorologist Alfred Wegener as a part of his theory of continental drift. Its name is derived from the Greek pangaia, meaning “all the Earth.”" (copied from google)

3 0
3 years ago
Other questions:
  • 6. What is a controlled experiment? *
    15·1 answer
  • Once nutrients are absorbed through the intestinal wall and into the blood stream, they are taken up through the portal vein and
    13·1 answer
  • ATP can only be synthesized when the subunit it occupies (in ATP<br> synthase) is in the ___ state.
    14·1 answer
  • Which explanation is most likely an effect of the evolution of a larger brain in humans? A larger brain allowed humans to use to
    10·2 answers
  • The beginning of the phanerozoic is marked by the ________.
    10·1 answer
  • What kind of bonding occurs between carbon atoms, allowing carbon to form stable molecules?
    6·1 answer
  • When researchers are measuring plant productivity, they usually harvest and measure above-ground biomass. But with grassland pla
    9·1 answer
  • A biology teacher placed a chicken egg in vinegar to dissolve the shell exposing the cell membrane. the teacher then placed the
    8·1 answer
  • Explain the process of digestion abd absorption of carbohydrates.​
    15·1 answer
  • Does anyone know these two answers?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!