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bearhunter [10]
3 years ago
12

Mike is conducting an experiment inside an Erlenmeyer flask, and he has the top of the flask sealed with a balloon to capture an

y gaseous products that may be produced. Is Mike's experimental setup an example of a closed, open, or isolated system
Chemistry
1 answer:
zhenek [66]3 years ago
5 0

Answer:

Closed system

Explanation:

In order to do this, let's remember the concepts of an open, closed and isolated system.

Open system: Any matter and heat can enter or leave the system.

Closed system: any matter cannot enter or leave the system, however heat can enter or leave the system.

Isolated system: neither matter nor heat can enter or leave the system.

Now, an open system cannot be, cause the flask is sealed at the top with a balloon, so matter cannot escape the system.

Now, in general terms, an erlenmeyer flask is not insulated to prevent that any heat or energy can be transfered, hence, the system, even with the balloon to prevent any escape of the gaseous product, it can still transfer heat or energy to the medium. This can be verified by touching the balloon or flask, therefore, is a closed system.

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Determine the balanced chemical equation for this reaction. C8H18(g)+O2(g)→CO2(g)+H2O(g)
ankoles [38]

Answer: balanced reaction equation

C8H18(g) + 25/2 O2(g) ---------> 8CO2(g) + 9H2O(l)

Explanation:

Part A- coefficients

1, 25/2,8,9

Part B

Oxygen is the limiting reactant

Part C

If 1 mole of octane produced 9 moles of water from the balanced reaction equation

0.28 moles of octane will produce 0.28×9= 2.52 moles of water

Part D

If 12.5 moles of oxygen reacts with 1 mole of octane

0.63 moles of oxygen will react with 0.63/12.5=0.0504moles of octane

Amount of octane left= 0.280-0.0504=0.2296 moles

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3 years ago
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nataly862011 [7]
I think it's between B) Benzene and C) Butane
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you find this receipt and remember it can help you with a lock. You have 9 members in your unit. This will take care of 1 member
Stells [14]

Answer:(9x) x 6 + (8x) x= the cost to take care of one member for one day

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Answer:

<h3>A. </h3>

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The element of the group 17 that is most active non metal is fluorine.

The group 17 of the periodic table contains bromine(Br), iodine(I), Chlorine(Cl) and fluorine(F).

Among all the elements of the group 17. Fluorine is the smallest in size.

Because of the small size of fluorine it has the highest electronegativity in group 17.

This high electronegativity makes it a very active non metal. It provides a very high oxidizing power and low dissociation energy to the fluorine atom.

Also because of the very small size the source of attraction between the nucleus and the electrons is very high in floor in atom.

It reacts readily to form oxides and hydroxides.

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