What experiment did j.j. thomson do ?

Answers

Answer 1
Answer:

Answer:

He sent a cathode ray between electrically changed metal plates.

Explanation:

A P E X

Answer 2
Answer:

Answer:

He experimented with subatomic particles in cathode tubes to discover  protons and electrons.

Explanation:


Related Questions

One balloon was only partly filled when put on the plane. During the flight, the balloon volumeincreased from 7 L at 1.0 atm to 9 L. What was the cabin pressure on the airplane during the flight?(Assume the balloon stretched very easily and the temperature was constant.)
What's something that is the measure of energy of motion of particles of matter
A self-contained living thingA. EcosystemB. OrganismC. CompetitionD. PopulationE. Resources​
Asexual organisms, as compared to sexual organisms, tend to be smaller, have shorter life spans, and produce little or no genetic variability between generations. This makes it harder for an individual asexual organism to survive and reproduce. What is one advantage that asexual organisms have that helps them to overcome these disadvantages?They never need to sleep.A They are able to find food easier.B They have higher reproductive rates.C They use energy more efficiently.
Urgent need help fast Explain what happens to the temperature of ice while it melts

What are some advantages of using less farm machinery in planting?

Answers

a. there will be less pollution.
b. less machinery=hiring workers=jobs.
c. If farm machinery broke in the field.  repairing is very inconvenient. There will be no trailer to pull it away. This is a disadvantage of machinery.

Write the pressure equilibrium constant expression for this reaction. 2CO2 (g) + 4H2O (g) → 2CH3OH (l) + 3O2 (g)

Answers

Answer:

The pressure equilibrium constant (Kp) = (P O₂)³/(P CO₂)²(P H₂O)⁴.

Explanation:

  • For the reaction:

2CO₂ (g) + 4H₂O (g) → 2CH₃OH (l) + 3O₂ (g).

The pressure equilibrium constant (Kp) = the product of the pressure of the products side components / the product of the pressure of the reactantss side components.

each one is raised to a power equal to its coefficient.

∴ The pressure equilibrium constant (Kp) = (P O₂)³/(P CO₂)²(P H₂O)⁴.

Why are some constellations visible year-round, while others appear only part of the year?

Answers

Circumpolar constellations stay in the sky. Because of the rotation of the Earth and its orbit around the Sun, we divide the stars and constellations into two groups. Some stars & constellations never rise nor set, and they are called circumpolar.
circumpolar constellations stay in the sky. Because of the rotation of the Earth and its orbit around the sun, we divide the stars and constellations into 2 groups. Some stars and constellations never rise nor never set, and they are called circumpolar. Thus only some constellations are visible year- round 

Given the balanced equation representing a reaction:H2O + HCl ==> H3O+ + Cl-
According to one acid-base theory, the H2O molecule
(1) accepts H+ ions (3) donate H+ ions
(2) accepts OH- ions (4) donates OH- ions

Answers

The statement, that describes acid-base theory in which the H2O molecule is "accepts H^(+) ions."

What is an acid-base theory?

An acid is a compound that accepts a pair of electrons. A base is a generator of electron pairs. This is the broadest theory of acids and bases. Water can serve as both an acid and a base in solution, and it can also be both an acid and a base to itself. Water takes hydrogen ions and behaves as a base when coupled with an acid. When water is combined with a base, it gives hydrogen ions and so behaves as an acid. Using the balanced equation, the water molecule acts a acid which accepts  the hydrogen ion. to form hydronium ion.

Hence the correct option is 1.

Learn more about acid-base theory here

brainly.com/question/23176932

#SPJ2

(1) accepts H+ ions..................

Which of these changes occurs during a nuclear change? A. No energy is involved in the reaction.
B. The nucleus disappears.
C. Matter changes from one state to another.
D. Elements are created that differ from the reactants.

Answers

The correct answer is D. Elements are created that differ from the reactants.. Because in a eeaction, the product is different than the reactants. Take NaCl for example.

Standard reduction potentials are based on which element?A.
helium
B.
hydrogen
C.
lithium
D.
oxygen
E.
zinc

Answers

Answer: option B. Hydrogen

Explanation: