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
Naily [24]
3 years ago
5

Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments listed below did no

t give the results described?
A. The Rutherford experiment proved the Thomson "plum-pudding" model of the atom to be essentially correct.
B. The Rutherford experiment was useful in determining the nuclear charge on the atom.
C. Millikan's oil-drop experiment showed that the charge on any particle was a simple multiple of the charge on the electron.
D. The electric discharge tube proved that electrons have a negative charge.
E. All of the above experiments gave the results described.
Chemistry
1 answer:
uranmaximum [27]3 years ago
4 0

Answer:

Option A, The Rutherford experiment proved the Thomson "plum-pudding" model of the atom to be essentially correct.

Explanation:

Thomson's plum pudding model:

Plum pudding model was proposed by J.J Thomson. In Thomson's model, atoms are proposed as sea of positively charge in which electrons are distributed through out.

Result of Rutherford experiment:

As per Rutherford's experiment:

Most of the space inside the atom is empty.

Positively charge of the atom are concentrated in the centre of the atom known as nucleus.

Electrons are present outside the nucleus and revolve around it.

As it is clear that, result of Rutherford experiment did not supported the Thomson model.

You might be interested in
Why is it important to have long term measurements when studying ecosystems
Alex Ar [27]
Because ecosystems don't change over one day, they change over a long period of time. Plus, something that happens may be because of more than just one change.
5 0
2 years ago
Using the balanced equation below,
Zielflug [23.3K]

Answer:

Mass = 6.538 g

Explanation:

Given data:

Mass of zinc hydroxide produced = 9.65 g

Mass of zinc required = ?

Solution:

Chemical equation:

Zn + 2MnO₂ + H₂O      →      Zn(OH)₂ + Mn₂O₃

Number of moles of zinc hydroxide:

Number of moles = mass/molar mass

Number of moles = 9.65 g/ 99.42 g/mol

Number of moles = 0.1 mol

now we will compare the moles of zinc and zinc hydroxide,

                  Zn(OH)₂           :          Zn

                       1                  :          1

                    0.1                  :         0.1

Mass of zinc required:

Mass = number of moles × molar mass

Mass = 0.1 mol × 65.38 g/mol

Mass = 6.538 g

8 0
2 years ago
Read 2 more answers
A 80.0 g piece of metal at 88.0°C is placed in 125 g of water at 20.0°C contained in a calorimeter. The metal and water come to
grandymaker [24]

Answer:

The specific heat of the metal is 0.485 J/g°C

Explanation:

<u>Step 1:</u> Data given

Mass of the piece of metal = 80.0 grams

Mass of the water = 125 grams

Initial temperature of the metal = 88.0 °C

Initial temperature of water =20.0 °C

Final temperature = 24.7 °C

pecific heat of water is 4.18 J/g*°C

<u>Step 2:</u> Calculate specific heat of the metal

Qgained = -Qlost

Q =m*c*ΔT

Qwater = - Qmetal

m(water)*c(water)*ΔT(water) = -m(metal)*c(metal)*ΔT(metal)

with mass of water = 125 grams

with c( water) = 4.18 J/g°C

with ΔT(water) = T2-T1 = 24.7 - 20 = 4.7°C

with mass of metal = 80.0 grams

with c(metal) = TO BE DETERMINED

with ΔT(metal) = 24.7 - 88.0 = -63.3 °C

125*4.18*4.7 = -80 * C(metal) * -63.3

2455.75 = -80 * C(metal) * -63.3

C(metal) = 2455.75 / (-80*-63.3)

C(metal) = 0.485 J/g°C

The specific heat of the metal is 0.485 J/g°C

3 0
3 years ago
Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released
4vir4ik [10]

Answer:

c. It generates changes in the magnetic field of Earth.

Explanation:

please mark this answer as brainlest

7 0
2 years ago
Read 2 more answers
Nitriles can be converted into carboxylic acids. how would you use ir spectroscopy to monitor the progress of this reaction?
Lady bird [3.3K]

Fats or oils are created when the hydroxide group of glycerol combines in a dehydration synthesis process with the carboxyl group of fatty acids.

<h3>What is dehydration ?</h3>

Your body loses more fluids when you are dehydrated than you are taking in. If unattended to, it could get worse and become a serious problem.

When you don't drink enough water or lose more than you take in, you become dehydrated. Sweat, tears, vomiting, urination, and diarrhea all cause fluid loss. Climate, level of physical activity, food, and other variables can all affect how severe dehydration is.

Dark urine, decreased urination, headaches, weariness, dry skin, decreased skin turgor, and poor focus are all indicators of dehydration.

To learn more about dehydration from the given link:

brainly.com/question/12261974

#SPJ4

4 0
1 year ago
Other questions:
  • An impure sample of table salt that weighed 0.8421 g, when dissolved in water and treated with excess AgNO3, formed 2.044 g of A
    14·1 answer
  • A 1.2-L container of liquid nitrogen is kept in a closet measuring 1.0m by 1.3m by 2.0m . Assume that the container is completel
    12·1 answer
  • How many total atoms in 5 mg(NO3)2
    13·2 answers
  • Help me answer this question
    9·2 answers
  • the first three ionization energies of an element x are 590, 1145, and 4912 kj mol-1. what is the most likely formula of the com
    14·1 answer
  • How many elements are in this chemical formula? <br> 2(NH4)2SO4
    7·1 answer
  • ANSWER ASAP GIVING BRAINIEST FIVE STARS AND HEART!
    7·2 answers
  • Write the products and balance the equation:<br><br> C4H7OH + O2 → CO2 +H2O
    5·1 answer
  • MHA FANS FINISH THE MEME<br> who's that Pokémon?<br><br> Fudge!<br> -bakugou
    5·1 answer
  • What was boyle’s most famous discovery about gases?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!