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
kaheart [24]
2 years ago
14

What scientist first developed an equation to calculate the wavelengths of lines in the emission spectrum of hydrogen atoms?.

Chemistry
1 answer:
abruzzese [7]2 years ago
4 0

Answer:

Swedish physicist Johannes Rydberg

Explanation:

You might be interested in
A stainless steel knife has a volume of 1.2 cubic centimeters and a mass of 9.0 grams.
bija089 [108]

Answer:

7.5

Explanation:

density = mass / volume

9÷1.2 = 7.5

5 0
2 years ago
Which describes the path of energy that a gas powered car uses to drive along a road?
harkovskaia [24]

Answer:

mechanical energy to electrical energy to light energy

4 0
3 years ago
Science pls help me having trouble on the third one
Ira Lisetskai [31]
The diameters of the spheres are 72.5 meters square
6 0
3 years ago
Read 2 more answers
The diagram below is an artist’s impression of a single atom of element Be. The neutrons are shown with stripes, the protons are
lara [203]
The correct option is B.
Isotopes refers to those chemical compounds which have the same number of protons and electrons but different number of neutrons, so they end up having different mass numbers.  The diagram given above is that of beryllium, which has atomic number 4 and it has 2 electrons in its outermost shell. It has four protons [same as the number of electrons] and 5 neutrons. Beryllium 10, which is its isotope has four electrons, four protons and 6 neutrons. To get the number of neutron, remove the number of electrons from the number given in the option, that is, 10 - 4 = 6.
8 0
3 years ago
If a gas sample has a pressure of 30.7 kPa at 0.00*C, by how much does the temperature have to decrease to lower the pressure to
Scrat [10]

Answer:

                      252.68 K  or   -20.46 °C

Explanation:

                    According to Gay-Lussac's Law, "Pressure and Temperature at given volume are directly proportional to each other".

Mathematically,

                                              P₁ / T₁  =  P₂ / T₂   ---- (1)

Data Given:

                  P₁  =  30.7 kPa

                  T₁  =  0.00 °C  =  273.15 K

                  P₂  =  28.4 kPa

                  T₂  =  <u>???</u>

Solving equation for T₂,

                  T₂  =  P₂ T₁ / P₁

Putting values,

                  T₂  =  28.4 kPa × 273.15 K / 30.7 kPa

                  T₂  =  252.68 K  or   -20.46 °C

8 0
3 years ago
Other questions:
  • How can we be safe in a science laboratory
    13·2 answers
  • . The net ionic equation for the reaction that occurs during the titration of nitrous acid with sodium hydroxide is (a) HNO2 Na
    13·1 answer
  • Which ONE of the following is an oxidation–reduction reaction? A) PbCO3(s) + 2 HNO3(aq) ––––&gt; Pb(NO3)2(aq) + CO2(g) + H2O(l)
    8·1 answer
  • Which is the electron configuration for zinc?
    6·2 answers
  • What are the 7 sources of energy?
    8·1 answer
  • summer school is over, and I'm feeling self-destructive. Take all of my points and have a good night. 3/3
    6·2 answers
  • How is the bond in F2 different from the bond in KCl?
    5·1 answer
  • Groundwater makes up most of the water on the planet True or false
    12·2 answers
  • Does the motion of the moon affects how we see it from Earth? *
    10·1 answer
  • Which element has the lowest first ionization energy?<br> Be<br> Sr<br> OCa<br> Mg
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!