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
Romashka [77]
3 years ago
6

What causes interstellar dust and clouds of gas to condense into planets and stars?

Chemistry
1 answer:
aleksklad [387]3 years ago
3 0
The gravitational pull
You might be interested in
If 100.0 grams of na3n decompose to form sodium and nitrogen, how many moles of sodium are formed? write and balance equation be
Yakvenalex [24]
The balanced equation is:
2Na_3N-\ \textgreater \ 6Na + N_2

Then proceed with the following equations.


100g Na_3N*(\frac{1molNa_3N}{82.98gNa_3N})*(\frac {6mol Na}{2molNa_3N})*(\frac {22.99gNa}{1molNa})=83.12gNa

The answer is 83.12gNa.
7 0
3 years ago
Read 2 more answers
Different isotopes of the same element emit light at slightly different wavelengths. A wavelength in the emission spectrum of a
Inessa [10]

Different isotopes of the same element emit light at slightly different wavelengths, the minimum number of slits  is mathematically given as

N=1820slits

<h3>What minimum number of slits is required to resolve these two wavelengths in second-order?</h3>

Generally, the equation for the wave is mathematically given as

d\ sin\ (\theta\ m) \ = \ m\  \lambda

Where the chromatic resolving power (R) is defined by

R\  =\ \lambda\ / \ d \  \lambda

R = nN,

Therefore

\lambda_1 \ = \  (656.45)(1 \ * \ 10^{-9})/1mm

\lambda_1= 656.45*10^{-9}

and

\lambda_2= (656.27)(1*10^{-9})/1mm

\\\\\lambda_2= 656.27*10^{-9}m

In conclusion, the minimum number of slits is required to resolve these two wavelengths in second-order

N\ =\ \dfrac{\lambda}{m\ d\ T\ }\\\\

Therefore

N\ =\ \dfrac{656.45 \ * \ 10^{-9}}{2\ * \ (0.18*10^{-9})}

N=1820slits

Read more about slits

brainly.com/question/24305019

#SPJ1

7 0
2 years ago
Precipitation reactions always occur when two aqueous solutions are mixed (T/F)
Studentka2010 [4]

Answer: The given statement is false.

Explanation:

Precipitation reaction is defined as the chemical reaction in which two aqueous solution upon mixing together results in the formation of an insoluble solid.

For example, NaCl(aq) + AgNO_{3} \rightarrow NaNO_{3}(aq) + AgCl(s)

Here AgCl is present in solid state so, it is the precipitate.

But it is not necessarily true that two aqueous solutions will always result in the formation of a precipitate.

For example, NaCl(aq) + KNO_{3}(aq) \rightarrow KCl(aq) + NaNO_{3}(aq)

Hence, we can conclude that the statement precipitation reactions always occur when two aqueous solutions are mixed, is false.

7 0
3 years ago
Is anyone else's brainly not working or is mine the only one that is tweaking?
omeli [17]
Mine tweaking as well
5 0
3 years ago
. Which of the following factors contributes to the increase in lonization energy from left to right across a period?
Lyrx [107]

Answer:

Answer is D

Explanation:

an increase in the number of protons

8 0
3 years ago
Other questions:
  • Which of the following will dissolve most quickly? A. two sugar cubes. . B. a tablespoon of coarse sugar. . C. a tablespoon of t
    8·2 answers
  • Write the condensed ground-state electron configurations of these transition metal ions, and state which are paramagnetic:
    12·1 answer
  • What might be a good metaphor for this statement? All the birds get fed when the corn gets crushed
    6·1 answer
  • why is it is difficult to compress a liquid? a. liquid takes the shape of its container. b. the liquid particles flow away when
    6·1 answer
  • A certain first-order reaction has a rate constant of 2.15×10−2 s−1 at 20 ∘C. What is the value of k at 55 ∘C if Ea = 72.0 kJ/mo
    10·1 answer
  • Help me pls!!!!!!!!!!!
    15·1 answer
  • 2. Which of the following is/are TRUE regarding net ionic equations?
    9·1 answer
  • 3. The substance that is formed or we finish up with are called.​
    15·1 answer
  • What is the modern modification of atomic theory​
    7·1 answer
  • What is the agent that causes frost wedging?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!