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
BigorU [14]
3 years ago
11

Why are scientific models important in the study of science? A. They are useful only for teaching students about science. B. The

y help scientists understand complex ideas and objects that aren’t easy to handle. C. They enable scientists to popularize their work in society. D. They are necessary to conduct the peer review process. E. They are necessary for turning a hypothesis into a law.
Chemistry
2 answers:
Lelechka [254]3 years ago
8 0

Answer:

The correct answer is option B, that is, they help scientists to understand the complex ideas and objects, which are not easy to handle.

Explanation:

The representations of the systems, objects, or events, which are used as tools for comprehending the natural world are known as scientific models. The models utilize known objects to signify unknown things. The models can assist one to visualize or develop pictures in the mind, for something, which is not easy to comprehend or observe.

madreJ [45]3 years ago
4 0
The correct answer should be B.
The correct answer would be B.
You might be interested in
What is the point of doing an experiment. Help thank you​
bogdanovich [222]

Answer:

to find out how somethings work

Explanation:

7 0
3 years ago
Read 2 more answers
What did Bohr conclude about the atom after observing emission spectrum lines a. Electrons can exist in any energy state but hav
cupoosta [38]

Answer:

Option c: Possible electron energy states are quantized within an atom.

Explanation:

The Bohr's Model of the hydrogen atom consisted of the movements of the electrons around the positively-charged nucleus in circular orbits that have a certain energy state. The energy of that orbit is given by:  

E_{n} = - \frac{Rhc}{n^{2}}

<em>Where:</em>

E(n): is the energy of an electron in a particular orbit

R: is the Rydberg constant

h: is the Plank constant

c: is the speed of light

n: is a positive integer which corresponds to the number of the orbit

The ground state energy of a electron in the hydrogen atom is equal to -13,6 eV.

Bohr's Model aims to propose that the electron is restrictedly to occupy a certain region in the atom.    

Therefore, the conclusion of Bohr after observing emission spectrum lines is that "possible electron energy states are quantized within an atom", so the correct option is c.

I hope it helps you!

7 0
3 years ago
To convert from liters/second to cubic gallons/minute, multiply the number of liters/second by 15.850 0 0.0353 00.2642 0 60
ivanzaharov [21]

Answer: 15.850

Explanation:

The conversion used from liters to gallons is:

1 L = 0.264172 gallon

The conversion used from sec to min is:

60 sec = 1 min

1 sec =\frac{1}{60}\times 1=0.017min

We are asked: liters/sec = gallons/min

liters/sec=\frac{0.264172}{0.017}=15.850gallons/min

Therefore, to convert from liters/second to gallons/minute, multiply the number of liters/second by 15.850.

8 0
3 years ago
A sample of hydrogen gas has an initial pressure of 2.86 atm and an initial volume of 8472 mL If the volume of the
Oliga [24]
<h3>Answer:</h3>

Gas law : Boyle's law

New pressure: 66.24 atm

<h3>Explanation:</h3>

Concept tested: Gas laws (Boyle's law)

<u>We are given,</u>

  • Initial pressure, P₁ = 2.86 atm
  • Initial volume, V₁ = 8472 mL
  • New volume, V₂ IS 365.8 mL

We need to determine the new pressure, P₂

  • According to Boyle's law , the volume of a fixed mass of a gas and the pressure are inversely proportional at constant temperature.
  • That is, P\alpha \frac{1}{V}
  • This means , PV = k (constant)
  • Therefore; P₁V₁ = P₂V₂
  • Rearranging the formula, we can get the new pressure, P₂

P₂ = P₁V₁ ÷ V₂

   = (2.86 atm × 8472 mL) ÷ 365.8 mL

   = 66.24 atm

Therefore, the new pressure is 66.24 atm

5 0
3 years ago
What is the molarity of 50.84 g of Na2CO3 dissolved in 0.400 L solution?
borishaifa [10]

Answer:

1.20 M

Explanation:

Convert grams of Na₂CO₃ to moles.  (50.84 g)/(105.99 g/mol) = 0.4797 mol

Molarity is (moles of solute)/(liters of solvent) = (0.4797 mol)/(0.400 L) = 1.20 M

4 0
3 years ago
Other questions:
  • How many grams of aluminum will be produced if 21.3g of Ba react with 19.7g of Al2 (SO4)3
    14·1 answer
  • In your own words, give two reasons why it is important to work with a partner while completing a lab.
    5·1 answer
  • How many moles of PBr3 contain 3.68 x 10^25 bromine atoms?
    11·2 answers
  • For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCL2)
    5·1 answer
  • Given the equation representing a system at equilibrium:
    11·2 answers
  • What is the scientific word : <br><br>molecules of an element containing three of the same type
    13·1 answer
  • 1 point
    11·1 answer
  • WILL MARK BRAINLIEST<br> _________ are the outermost electrons of an atom
    14·2 answers
  • According to the law of conservation of mass, in any chemical change:
    15·2 answers
  • Compound X has a Rf value of 0.25. How far will compound X have traveled from the origin when the eluent (solvent) front has tra
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!