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True [87]
3 years ago
9

Cathode ray tube experiments

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
6 0

Answer:

Particles of the cathode rays are fundamental to all matter.

Matter contains negative charge and by inference positive charge.

There are subatomic size particles in an atom.

Cathode rays have mass.

Explanation:

  • <u>Radiation emitted from cathode was accelerated toward the anode in tubes.</u>

This means that the cathode rays which are travelling towards anode (positively charged) are negatively charged. Atom was considered to have subatomic particles.

C and D are correct.

  • <u>Cathode rays was observed to be same regardless of composition of cathode.</u>

This means that particles of cathode rays are fundamental to all the matter.

A is correct.

  • <u>The rays are influenced by the magnetic and electric field and also they move a light fan when placed inside the tube. </u>

It means that the cahrged particle has mass too.

D is correct.

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Write a balanced equation describing each of the following chemical reactions:
shusha [124]

Explanation:

( a )

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2  KClO₃ ( s )  -------> 2 KCl ( s ) +  3O₂ ( g )

( b )

The reaction of solid metal of Aluminum with Iodine in the following way -

2 Al ( s )  +  3 I₂ ( s ) ------> Al₂I₆ ( s )

( c )

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( d )

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8 0
3 years ago
What is the concentration in g/L of a solution containing 10 g of solute in 2 L of solution
alekssr [168]

The concentration is 5 g/L.

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6 0
3 years ago
One type of electromagnetic radiation that could harm humans
Vladimir79 [104]
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3 years ago
Does anyone know how to find mass of NaN3?
Alexus [3.1K]
The molar mass (atomic weight ) of sodium is 23.0 grams/mole and the molar mass of sodium azide, NaN3 , is the mass of sodium, 23.0 gram/mole added to the molar mass of three atoms of nitrogen (14.0 x 3 = 42 gram/mole) which equals 65.0 grams/mole. The percentage of sodium is 23.0 /65.0 x 100 % = 35 %
4 0
2 years ago
Read 2 more answers
Pls help and show work!!!
kumpel [21]

Answer:

44.9g

Explanation:

You have to convert grams of CH4 to moles, use the mole-to-mole ratio of CH4 to water, and convert back to grams.

(20.0g CH4)(1 mol CH4/16.04g)(2 mol H2O/1 mol CH4)(18.01 g H2O/ 1 mol) = 44.9127 g

Hope this helps!

5 0
3 years ago
Read 2 more answers
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