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
scoundrel [369]
3 years ago
9

Which of these processes are chemical reactions?

Physics
1 answer:
Rudiy273 years ago
4 0
I’m not very good at this subject but I’d say it’s A Boiling an egg
You might be interested in
What’s the four missing blanks in this diagram?
sergey [27]

Answer:

                                                    Matter

                Pure substances                                        Mixture

Element                         compound         Homogenous           Heterogenous

7 0
3 years ago
Show that the entire Paschen series is in the infrared part of the spectrum. To do this, you only need to calculate the shortest
mr_godi [17]

Answer and Explanation:

The computation of the shortest wavelength in the series is shown below:-

\frac{1}{\lambda} = R(\frac{1}{n_f^2} - \frac{1}{n_i^2} )

Where

\lambda represents wavelength

R represents Rydberg's constant

n_f represents Final energy states

and n_i represents initial energy states

Now Substitute is

1.097\times 10^7\ m^{-1}\ for\ R, \infty for\ n_i,\ 3 for\ n_i,\\\\\ \frac{1}{\lambda} = R(\frac{1}{n_f^2} - \frac{1}{n_i^2} )

now we will put the values into the above formula

= 1.097\times 10^7 m^{-1}(\frac{1}{3^2} - \frac{1}{\infty^2} )\\\\ = 1.097\times10^7\ m^{-1} (\frac{1}{9} )

= 1218888.889 m^{-1}

Now we will rewrite the answer in the term of \lambda

\lambda = \frac{1}{1218888.889} m\\\\ = 0.82\times 10^{-6} m

So, the whole Paschen series is in the part of the spectrum.

8 0
3 years ago
A testing instrument that's used to measure electrical signals in a circuit and display them as waveforms on a screen is called
disa [49]
A testing instrument that's used to measure electrical signals
in a circuit and display them as waveforms on a screen is called
an oscilloscope.

8 0
3 years ago
You find a measurement or 34 kg written in a laboratory notebook. What physical characteristic is this a measurement of?
Elis [28]
Planck's constant. A physical constant adopted in 2011 by the CGPM.
7 0
3 years ago
If the action force is the boy pushing on the ball, what is the reaction force?
Brums [2.3K]
If the boy outputs enough weight upon the ball in response the ball will move.

Please vote my answer brainliest! Thanks.
7 0
3 years ago
Other questions:
  • A 50kg meteorite moving at 1000 m/s strikes Earth. Assume the velocity is along the line joining Earth's center of mass and the
    5·2 answers
  • What is the name of the process in which oceanic crust moves apart at mid-ocean ridges due to convention currents in the mantle?
    13·1 answer
  • A 1050 kg sports car is moving westbound at 13.0 m/s on a level road when it collides with a 6320 kg truck driving east on the s
    11·1 answer
  • A 1.2-kg ball drops vertically onto the floor, hitting with a speed of 25 m/s. Consider the impulse during this collision. Would
    9·1 answer
  • What is the formula of two vectors which are mutually perpendicular? ​
    15·1 answer
  • 1. Complete the table with the appropriate equivalences
    10·1 answer
  • SP1b.
    8·1 answer
  • How is matter changed from one state of matter to another? *
    7·1 answer
  • The difference between an experimental value and an accepted value is
    10·1 answer
  • Technical skills: knowledge base of sport rearrange our coaching skills from best (at the top) to worst (at the bottom) by dragg
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!