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
Gre4nikov [31]
2 years ago
14

It takes 50.0 J to raise the temperature of an 10.6 g piece of unknown metal from 13.0°C to 24.9 °C.

Chemistry
2 answers:
Ivanshal [37]2 years ago
7 0

Answer:

0.396 J/g°C (to 3 sf)

Explanation:

50.0 = 10.6(24.9-13.0)(c)

c = 0.396 J/g°C (to 3 sf)

wel2 years ago
3 0
Djduejddkshwtsibgkvehvdibv
Kjgjtxvohcj Kk L codici i
☕️‍♀️
You might be interested in
An alloy is a mixture that has
defon

Answer:

an alloy is a mixture of elements that has metallic properties

Explanation:

8 0
3 years ago
Read 2 more answers
Which statement about states of matter is correct? (1 point)
belka [17]

Answer:

C

Explanation:

If you add enough heat to a solid it eventually becomes a liquid

4 0
3 years ago
.help!!! due today!!! what is happening and how it is demonstrating Newton’s 1st law. make sure you describe inertia and how it
PilotLPTM [1.2K]
Inertia is making the penny keep doing what it is doing so staying the same and if you remove the card then the penny will drop
5 0
3 years ago
Which statement is true for dipole-dipole forces?
Zinaida [17]
They occur between polar molecules
7 0
3 years ago
Read 2 more answers
An electron in the n = 3 energy level of the hydrogen atom emits a photon with wavelength 656.27 nm. What is the change in energ
Lady_Fox [76]

Answer:change in energy of the electron=3.052x 10^-19J

which energy level does it move= level 2 , n=2

Explanation:

Using the formulae

1/λ = R (1/n1²- 1/n2²)

Where λ= 656.27 nm

1 nm = 1 x 10^-9 m

656.27 nm = 656.27 x 1 x 10^-9 =6.5726 x 10^-7

R =Rydberg constant = 1.0967 x 10^7m-1

1/λ = R (1/n1²- 1/n2²)

1/6.5726 x 10^-7=1.0967 x 10^7(1/n1²- 1/3²)

1/n1²=(1/6.5726 x 10^-7 x   1/1.0967 x 10^7) + 1/9

1/n1²=1,521,467.9 x 9.118x10^-8 + 0.1111

1/n1² =0.2498

n1²= 1/0.2498 =4

n1= \sqrt{4} = 2

it moves to energy level 2

b) Change in energy =ΔE = Rhc (1/n1²- 1/n2²)

Where R==Rydberg constant = 1.0967 x 10^7m-1

h = Planck constant = 6.626x 10^-34js

c = speed of light = 3.0 x 10^8 x m/s

ΔE = Rhc (1/n1²- 1/n2²)

=1.0967 x 10^7m-1 x6.626x 10^-34js X 3.0 x 10^8 x m/s (1/2² - 1/3²)

=2.18 x 10-18 x ( 1 /4 - 1/9)

=3.052x 10^-19J

7 0
3 years ago
Other questions:
  • Air at 293 K and 750 mm Hg pressure has a relative humidity of 80%. What is its percent humidity? The vapour pressure of water a
    6·1 answer
  • Can a liquid be measured in millimeters and kilometers
    13·2 answers
  • -Material A has a melting point of 34°C whereas Material B has a melting point of 56°C. Both materials have been placed in an ov
    15·1 answer
  • PLEASEEEE HELPPP I BEGGGG FOR HELPPP PLEASEE
    5·2 answers
  • Describe how the molecular structures of alkenes and alkynes differ from the structure of alkanes
    12·1 answer
  • Write the symbols for the following isotopes: Its atoms contain 50 electrons and 70 neutrons
    6·1 answer
  • What are the thee types of weak bonding ​
    11·1 answer
  • PLEASE HELPPPPPP!<br> I'll appreciate!
    10·1 answer
  • Which of the following have the greasiest ionization energy Bi, As, K or Ga?
    12·1 answer
  • Stuck at this. Can anyone help me pls? ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!