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
Zanzabum
2 years ago
14

Which word help the reader understand the meaning of stratum in paragraoh 3.

Chemistry
1 answer:
snow_tiger [21]2 years ago
4 0

Answer:

It should be D

Explanation:

Stratum is a layer of rock in the ground

You might be interested in
JWL 3.R 1.096776 x 107 m) L) 384.6 nm C) 683.8 nm D) 1282 nm E) >1500 nm Ans: D According to the Rydberg equation, the line w
sesenic [268]

Answer:

91.2 nm

Explanation:

The Rydberg equation is given by the formula

     1/ λ  = Rh ( 1/ n₁² - 1/ n₂²)

where

λ is the wavelength

Rh is Rydberg constant

and n₁ and n₂ are the energy levels of the transion.

We can see from this equation that the wavelength is inversely proportional to the difference of the squares of the inverse of the quantum numbers n₁ and n₂. It follows then that the smallest wavelength will be given when the the transitions are between the greatest separation between n₁ and n₂ whicg occurs when n1= 1 and n₂= ∞ , that is the greater the separation in energy levels the shorter the wavelength.

Substituting for n₁ and n₂ and solving for λ :

  1/λ = 1.0974 x 10⁷ m⁻¹ x ( 1/1² -1/ ∞²)  =  1.0974 x 10⁷ m⁻¹ x ( 1/1² - 0) =

  λ = 1/1.0974 x 10⁷ m = 9.1 x 10⁻8 m = 91.2 nm

4 0
3 years ago
Hey pleaseeeeeeeeeeeeeeeeeeeeeeee
charle [14.2K]

Answer: B

Explanation:

6 0
3 years ago
Read 2 more answers
Whichof the following is another name for science
snow_lady [41]
Field or discipline
 hope it helped
8 0
3 years ago
Which properties of matter are independent of the amount of the material?
Strike441 [17]
Physical properties can be observed or measured without changing the composition of matter. These are properties such as mass, weight, volume, and density. Remember that density is a physical property.
3 0
3 years ago
What element has only one proton in its nucleus??
blagie [28]
Hydrogen is the only element in entire periodic table with only 1 proton in its nucleus.
3 0
3 years ago
Other questions:
  • Adding solvent or removing solute from a soltuion is called __________, and a solution is said to be _______________ if it has m
    13·1 answer
  • In these zones, high solar elevation angles occur throughout the year, and this makes ________ consistently warm.
    12·1 answer
  • write both he full balanced ionic equation for the following reaction and the balanced net ionic equation. What are the specter
    10·1 answer
  • how many moles of silver nitrate are needed to produce 6.75 moles of copper (II) nitrate upon reacting with excess copper?
    5·1 answer
  • The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 × 10-5 M*
    8·2 answers
  • Think of two organisms.
    6·1 answer
  • 11x + 13<br> 12x+6 Solve for x
    13·2 answers
  • Cheryl kept a potted plant near a window. After two days, she observed that the plant had drooped as shown.
    9·1 answer
  • How many electrons are there in carbonate ion, CO3^-2?
    7·1 answer
  • Which phrase gives two processes scientists think move the Earth's lithospheric plates?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!