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m_a_m_a [10]
3 years ago
10

What experiment did J.J thomson do?

Chemistry
2 answers:
Fittoniya [83]3 years ago
7 0

Answer: C

Explanation:

valina [46]3 years ago
4 0

<u>Answer:</u>

Option(c)

He sent a cathode ray between electrically charged metal plates

<u>Explanation:</u>

In 1897, physicis JJ Thomson experimented with a device called CRT(cathode ray tube) in which a current passed through gases at a low pressure. A CRT(cathode ray tube) comprises of a sealed glass-duct fitted with electrodes at both ends of the metal disks.

Then the electrodes are connected to an electricity source. One electrode,  known as  anode, will be charged positively while the other electrode, referred as cathode, will be charged negatively. A light beam passes from the cathode to the anode which is called as the cathode ray.

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Which statement describes the particles of an ideal gas based on the kinetic molecular theory?
Zielflug [23.3K]

Answer:

Well ads I remember, the motion of the gas particles is random and in a straight-line. A sample of gas is contained in a closed rigid cylinder.

And here is what I found too -

According to Kinetic Molecular Theory, gaseous particles are in a state of constant random motion; individual particles move at different speeds, constantly colliding and changing directions. We use velocity to describe the movement of gas particles, thereby taking into account both speed and direction.

8 0
3 years ago
2H20<br> Which is the reactant
Lisa [10]

Answer:

the reactants are 2h2 and 02. the products are 2h20

have a great day my friend ;)

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3 0
3 years ago
Which of the following statements explains why atoms are always neutral in charge
laila [671]

Answer:

D. They have the same number of protons as electrons.

Explanation:

Protons are found in the nucleus of the atom and have a positive charge while electrons orbit around the nucleus and have a negative charge. Usually, in a neutral atom of an element, the number of protons is equal to the number of electrons. This is why the atom has no charge because the positive and negative charges cancel out. When an atom loses an electron its charge turns positive while when it gains an electron its charge turns negative.

6 0
2 years ago
(b) What is the pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ ?
g100num [7]

The pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ is 10.7.

<h3>What do we know about  dimethylammonium ion?</h3>

The conjugate acid of dimethylamine, dimethylaminium is an organic cation and a significant species at pH 7.3. It is a secondary aliphatic ammonium ion and an organic cation. It is a dimethylamine conjugate acid.

<h3>What do we understand by pKa?</h3>

In layman's terms, pKa is a measurement of an acid's strength. A strong acid will have a pKa value that is lower than 0. To be more specific, pKa is the Ka value's negative log base ten value (acid dissociation constant). How tightly a proton is retained by a Bronsted acid is how the strength of an acid is measured. The strength of the acid and its capacity to donate protons increase with decreasing pKa values.

To learn more about pKa:

brainly.com/question/13178964

#SPJ4

7 0
1 year ago
What are the answers?
IrinaK [193]

For Number 2 It Is The Law Of Conversation Of Mass

Number 3 Atoms Of Each Element

Number 7 Oxygen

Number 5 Single Replacement Reaction

I answered a few of them

6 0
4 years ago
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