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
oee [108]
3 years ago
15

When scientists conduct investigations, they collaborate to support each other's research. What is the importance of scientists

repeating the same experiment using the same steps?
It creates further questions to investigate, which creates more accurate results.
Having several trials that produce the same results is more accurate.
When multiple scientists repeat investigations, it allows them to investigate errors.
When scientists get more accurate results, the observations can be compared.
Chemistry
2 answers:
Blababa [14]3 years ago
4 0

B.   I just did this not lying a few minutes ago LOL

GL on the rest of your test!!!! :D

sashaice [31]3 years ago
3 0

Answer:

b or c but most likely  it is c

Explanation:

You might be interested in
At 85°C, the vapor pressure of A is 566 torr and that of B is 250 torr. Calculate the composition of a mixture of A and B that b
Phantasy [73]

Answer:

Composition of the mixture:

x_{A} =0.652=65.2 %

x_{B} =0.348=34.8 %

Composition of the vapor mixture:

y_{A} =0.809=80.9%

y_{B} =0.191=19.1%

Explanation:

If the ideal solution model is assumed, and the vapor phase is modeled as an ideal gas, the vapor pressure of a binary mixture with x_{A} and x_{B} molar fractions can be calculated as:

P_{vap}=x_{A}P_{A}+x_{B}P_{B}

Where P_{A} and P_{B} are the vapor pressures of the pure compounds. A substance boils when its vapor pressure is equal to the pressure under it is; so it boils when P_{vap}=P. When the pressure is 0.60 atm, the vapor pressure has to be the same if the mixture is boiling, so:

0.60*760=P_{vap}=x_{A}P_{A}+x_{B}P_{B}\\456=x_{A}P_{A}+(1-x_{A})P_{B}\\456=x_{A}*(P_{A}-P_{B})+P_{B}\\\frac{456-P_{B}}{P_{A}-P_{B}}=x_{A}\\\\\frac{456-250}{566-250}=x_{A}=0.652

With the same assumptions, the vapor mixture may obey to the equation:

x_{A}P_{A}=y_{A}P, where P is the total pressure and y is the fraction in the vapor phase, so:

y_{A} =\frac{x_{A}P_{A}}{P}=\frac{0.652*566}{456} =0.809=80.9 %

The fractions of B can be calculated according to the fact that the sum of the molar fractions is equal to 1.

7 0
3 years ago
Our recorded observations are called.
trapecia [35]

Answer:  Raw data, perhaps.

Explanation:  I'm not certain what the question is seeking for an answer, but I would suggest "raw data" would be a reasonable choice.  It reflects the data was recorded, but not yet processed to provide a conclusion or observation.

If one were a bit snarky, other possiblities include

  • a pile of dung
  • my labmate's scrawls, or
  • the best web results I could find

5 0
3 years ago
Explain how carbon is conserved in the carbon cycle.
Advocard [28]

Most of the carbon is put away in sedimentary carbonates and kerogens, with the rest being spread between the sea, the air, biomass, for example, plants and creatures, and petroleum products.

<u>Explanation</u>:

  • The carbon cycle is the procedure where carbon goes from the surrounding into living beings and to the Earth and then again goes into the air. Plants take carbon dioxide from the air and use it for food preparation. Creatures at that point eat the nourishment and carbon is put away in their bodies or discharged as CO2 through the breath.  
  • Most of the carbon is put away in sedimentary carbonates and kerogens, with the rest being spread between the sea, the air, biomass, for example, plants and creatures, and petroleum products. This is known as carbon storage.  
  • For instance, carbon, a fundamental component in natural particles, is preserved as it is moved from inorganic carbon in a biological system to natural atoms in living life forms of the biological system and back as inorganic carbon to the earth.

8 0
3 years ago
A compoundwhose water solution conducts electricity and turns phenolphthalein pink is?
Travka [436]
These are properties of alkaline base.
<span>D.NaOH</span>
5 0
4 years ago
Who wants to be friends?
nika2105 [10]

Answer:

Meeee

Explanation:

Dis is my new account.

8 0
4 years ago
Read 2 more answers
Other questions:
  • Please help me. My chemistry teacher is not teaching us doing this epidemic
    13·1 answer
  • How do seismologists, or scientists who study earthquakes, know that the largest known earthquake to hit the region occurred aro
    15·1 answer
  • 20 POINTS!!!!......
    9·2 answers
  • Differences in frames of reference are especially significant when ________. a. working on improving one’s listening skills b. c
    8·1 answer
  • What is plasma and where can you find it
    15·2 answers
  • 2. How would type of substance affect the rate of reaction?
    11·1 answer
  • All generators need some source of energy to rotate the coil or magnets.<br> True or False
    14·1 answer
  • How many silver atoms are in 1 mole of silver?
    8·2 answers
  • What is FGD /Flue gas desulfurization is used for?
    9·1 answer
  • Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!