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
lana [24]
3 years ago
14

Which discovery did J. J. Thomson make that improved upon Dalton's atomic theory?

Chemistry
1 answer:
erik [133]3 years ago
3 0

Answer: Atoms contain tiny, negatively charged electrons

Explanation: Thomson's experiments with cathode ray tubes helped him to discover the electron (which Dalton did not know about). Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles.

You might be interested in
The atmospheric pressure on the surface of Venus is 6.84X10^4. Calculate the atmospheric pressure in atm and torr. Round each of
quester [9]

Answer:

0.675 atm

513 Torr

Explanation:

Given is that, the atmospheric pressure on the surface of Venus is

6.84 X 10⁴ Pa.

1 atm (atmospheric pressure) is equal to 101325 pascal (Pa).

To convert divide the pressure value by 101325.

Pressure in atm = \frac{6.84 \times 10^{4} }{101325}

= 0.675055 atm

Rounding it off to 3 significant digits: 0.675 atm

Now,  one Torr is 133.322 Pa. For conversion, divide the pressure value by 133.322.

Pressure in Torr = \frac{6.84 \times 10^{4} }{133.322}

=513.04219 Torr

Rounding it off to 3 significant digits: 513 Torr

5 0
2 years ago
Why do the particles of objects have both kinetic and potential energy?  
OLEGan [10]
The particles of objects have both kinetic and potential energy because these forces are drive by the force of motion or stillness of an object. Potential energy is the a type of energy which an object possess however without motion. Kinetic energy in the other hand, is the energy in motion or if the object moves along from one space to another with respect to time. They both have these two energies by the presence of atoms in these entities.



3 0
3 years ago
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
n200080 [17]

Answer: Cornea  

Explanation: The cornea is the only part of a human body that has no blood supply as it gets oxygen directly through the air.

3 0
3 years ago
The scientific theory is called
Aliun [14]

Answer:

is a well-sustantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.such fact- supported theories are not "guesses" but reliable accounts of the real worlds.

3 0
3 years ago
A chemist burns 0.8 g of iron in oxygen.
stich3 [128]

Answer:

0.3g

Explanation:

1.1 - 0.8 = 0.3

Hope this helps

7 0
3 years ago
Other questions:
  • How many grams of nano3 remain in solution at 20 ∘c?
    13·1 answer
  • What is the balanced equation for the single replacement reaction between potassium and copper (2) chloride
    6·1 answer
  • Write the net ionic equation for the reaction that takes places between aqueous copper and nitrate.
    7·1 answer
  • Light travels at a speed of 3.00 × 1010 cm/sec. What is the speed of light in kilometers/hour?
    7·1 answer
  • Which of the following are NOT SAFE things to do, as we might get an electric shock?
    8·1 answer
  • An ion from a given element has 38 protons and 36 electrons what is the charge
    8·1 answer
  • Identify whether each reaction represents a chemical reaction or a nuclear reaction by filling in the blank with the word ‘chemi
    5·2 answers
  • The number of atoms of an element in a chemical formula is given by the _________.​
    13·1 answer
  • Which is true about relative dating?
    9·2 answers
  • How many grams of oxygen can be obtained from 250. grams of KCIO3?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!