At the start of the coal combustion experiment, the combined mass of the coal and
oxygen reactants was 100 grams. At the end of the coal combustion experiment, the
mass of the sample was 100 grams. Why does the scale showing the mass at the end
of the reaction give a mass of 100 grams, when there is only a small amount of solid
particles remaining on the scale?
OA. Additional oxygen was created during the combustion reaction
B. Additional coal was created during the combustion reaction.
OC. The mass of the coal particles remaining at the end of the experiment was
100 grams.
The mass of the carbon dioxide gas and other byproducts at the end of the
experiment was 100 grams.
A. Additional oxygen was created
B. Additional coal was created
C. The mass of the coal particles remaining at the end of the experiment was 100 grams
D. The mass of the carbon dioxide gas and other byproducts at the end of the experiment was 100 grams

Question

kailee113 kailee113

12-12-2022
Chemistry

contestada

At the start of the coal combustion experiment, the combined mass of the coal and
oxygen reactants was 100 grams. At the end of the coal combustion experiment, the
mass of the sample was 100 grams. Why does the scale showing the mass at the end
of the reaction give a mass of 100 grams, when there is only a small amount of solid
particles remaining on the scale?
OA. Additional oxygen was created during the combustion reaction
B. Additional coal was created during the combustion reaction.
OC. The mass of the coal particles remaining at the end of the experiment was
100 grams.
The mass of the carbon dioxide gas and other byproducts at the end of the
experiment was 100 grams.
A. Additional oxygen was created
B. Additional coal was created
C. The mass of the coal particles remaining at the end of the experiment was 100 grams
D. The mass of the carbon dioxide gas and other byproducts at the end of the experiment was 100 grams

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BinithaR BinithaR · Answer 1 · 2022-12-17T10:21:27+01:00

The system was closed in which combustion experiment conducted. Thus, option D is correct.

What is meant by closed system?

A closed system is a system in which there is only transfer of energy is takes place this type of system is known as closed system.

Example - Transfer of heat from a cup of tea.

Mainly there are three type of system.

1:- Open System

2:- Closed System

3:- Isolated System

Open system:-

A system in which there is transfer of both energy and mass these types of system is called as open system.

Example:- Flow of water in a canals

Closed System:-

A system in which there is only transfer of energy is takes place this type of system is known as closed system.

Example - Transfer of heat from a cup of tea.

Isolated system:-

A system in which there is no transfer of energy and mass these type of system is called as isolated system.

Example - A thermo flask

Therefore, the system was closed in which combustion experiment conducted. Thus, option D is correct.

The complete question is : At the start of the coal combustion experiment, the mass was 100 grams. At the end of the coal combustion experiment, the mass was 100 grams. During the combustion experiment, heat was transferred from the reaction vessel to the area surrounding the reaction vessel. What type of system was this combustion experiment conducted in?

A. isolated

B. insulated

C. open

D. closed

To learn more about Closed system refer to :

https://brainly.com/question/17597998

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