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
Masteriza [31]
3 years ago
14

Who discovered the proton? Crookes Rutherford Balten Chadwick

Chemistry
1 answer:
Ronch [10]3 years ago
5 0

Answer:

Sir James Chadwick discovered proton  

Explanation:

Sir James Chadwick,  was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts.

You might be interested in
Question: why do astronauts wear organge suits vs white suits<br><br> Full answer please..
Alexeev081 [22]
Astronauts are found wearing orange-colored Advanced Crew Escape Suit (ACES) while the space shuttle is ascending or entering into space. This peculiar shade of orange known as “International Orange” was chosen for safety as it is highly visible against any kind of landscape, especially in the sea.
7 0
3 years ago
Calculate the amount of heat released when 27.0 g H2O is cooled from a liquid at 314 K to a solid at 263 K. The melting point of
lubasha [3.4K]
Cool liquid from 314 K to 273 K, freeze liquid at 273 K, and cool solid to 263 K.
5 0
3 years ago
Read 2 more answers
Solve and round to the correct number of significant figures: 129 ÷ 29.20
Scilla [17]

4.42

Because when you divide 129/29.20, you get a long string of numbers. 4.417808219178082...

So you round to the significant figure which in this case is 2 decimal places because 29.20 has 2 decimal places.

PS did you draw that car? Cuz im into drawing cars too.

5 0
3 years ago
The vaporization of 1 mole of liquid water (system) at 100.9 C, 1.00 atm, is endothermic.
yan [13]

Answer:

a) The work done is 10.0777 kJ

b) The water's change in internal energy is -122.1973 kJ

Explanation:

Given data:

1 mol of liquid water

T₁ = temperature = 100.9°C

P = pressure = 1 atm

Endothermic reaction

T₂ = temperature = 100°C

1 mol of water vapor

VL = volume of liquid water = 18.8 mL = 0.0188 L

VG = volume of water vapor = 30.62 L

3.25 moles of liquid water vaporizes

Q = heat added to the system = -40.7 kJ

Questions: a) Calculate the work done on or by the system, W = ?

b) Calculate the water's change in internal energy, ΔU = ?

Heat for 3.25 moles:

Q_{1} =3.25*(-40.7)=-132.275kJ

The work done:

W=-nP*delta(V)=-3.25*101.33*(0.0188-30.62)=10077.6637J=10.0777kJ

The change in internal energy:

delt(U)=W+Q_{1} =10.0777-132.275=-122.1973kJ

7 0
3 years ago
Concerning Boyle's Law, if you had a gas at a pressure of 101 kPa and decreased the volume of the container holding the gas to o
Viefleur [7K]

Answer:

P_2=404 kPa

Explanation:

Hello,

In this case, the Boyle's is mathematically defined via:

P_1V_1=P_2V_2

Which stands for an inversely proportional relationship between volume and pressure, it means the higher the volume the lower the pressure and vice versa. In such a way, since the volume is decreased to one quarter, we can write:

V_2=\frac{1}{4} V_1

We can compute the new pressure:

P_2=\frac{P_1V_1}{V_2} =\frac{P_1V_1}{\frac{1}{4} V_1} =\frac{101kPa*V_1}{\frac{1}{4} V_1} \\\\P_2=4*101kPa\\\\\\P_2=404 kPa

Which means the pressure is increased by a factor of four.

Regards.

7 0
3 years ago
Other questions:
  • Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
    12·2 answers
  • For an amino acid such as aspartic acid, what impact would you expect a neighboring carboxylic acid to have on the apparent pKa
    5·1 answer
  • Measurements show that the enthalpy of a mixture of gaseous reactants increases by 243.kJ during a certain chemical reaction, wh
    5·1 answer
  • Describe and explain how petrol is separated from the mixture of hydrocarbons in crude oil.
    9·1 answer
  • 15 g de nitrato de amonio, NH4NO3 se disuelven en 135 g de agua. La densidad de la
    11·1 answer
  • In the first 21.0 s of this reaction, the concentration of HBr dropped from 0.550 M to 0.506 M . Calculate the average rate of t
    10·1 answer
  • A chemical reaction done at STP conditions is supposed to produce 0.011 moles of CO2 gas. How many liters of gas will that be?
    5·1 answer
  • Please help!!! due tomorrow and i’m really stuck!! thank you!
    14·1 answer
  • What is the hydroxide ion concentration of a solution with a pH of 4?
    11·1 answer
  • Please help me! <br><br> please explain your work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!