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3 years ago

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

Answer:

Option(c)

He sent a cathode ray between electrically charged metal plates

Explanation:

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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The amino acids are combinations of

aalyn [17]

Answer: The correct answer is: [B]:

_________________________________________________

" organic acid and amines " .

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Note: Choice B: "organic acid and amines" ;

is the only answer choice that contains "amines" (hint:  amino acid / amine) ; which are "proteins" .

As such; Choice "B" is the only correct answer choice.

_____________________________________________________

Hope this helps!

Best wishes to you!

_____________________________________________________

5 0

3 years ago

Read 2 more answers

4.50 g of NaCl reacts with 10.00 g of AgNO3 to produce 7.93 g of AgCl. If the theoretical amount of AgCl that can be formed is 8

olga nikolaevna [1]

Answer: 94.07%

Explanation:

Percentage yield can be calculated by the formula

%yield = Experimental yield/Theoretical yield x100

Experimental yield = 7.93g

Theoretical yield = 8.43

%yield = Experimental yield/Theoretical yield x100

%yield = 7.93/8.43 x 100 = 94.07%

4 0

3 years ago

Is the following nuclear equation balanced? No Yes

fredd [130]

Answer:

Yes.

The nuclear equation {226/88 Ra → 222/26 Rn + 4/2 He} is balanced. As we know that an alpha particle is identical to a helium atom. This implies that if an alpha particle is eliminated from an atom's nucleus, an atomic number of 2 and a mass number of 4 is lost.

Therefore, the equation will be reduced to:

226 - 4 = 222

88 - 2 = 86

Hence, the equation is balanced.

Explanation:

7 0

3 years ago

Read 2 more answers

An atom has 5 protons, 4 electrons, and 5 neutrons. Which

Likurg_2 [28]

Answer:

i think the answer is C