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zaharov [31]
3 years ago
6

HELP!!!! ASAP!!! Fast please !!! Is this A. Closed parallel circuit B. Closed series circuit C. Open series circuit D. Open para

llel circuit :)

Chemistry
1 answer:
tatuchka [14]3 years ago
7 0
Closed parallel circuit.<span />
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An important industrial route to extremely pure acetic acid is the reaction of methanol with carbon monoxide:
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The reaction has had a heat that is enthalpy of -22 kJ/mol. The exothermic process has been signaled by the negative sign.

The amount of energy that the system absorbs or releases to create the products is described as the heat of reaction.

The source of the reaction's heat is

H is equal to 3(413 Kj/mol) + 358 Kj/mol + 467 Kj/mol + 1070 Kj/mol = 3134 Kj/mol.

H prod equals 3(413 kj/mol) plus 347 kj/mol plus 358 kj/mol plus 467 kj/mol plus 745 kj/mol, or 3156 kj/mol.

H=3134 kj/mol - 3156 kj/mol = -22 Kj/mol

Negative findings point to an exothermic response.

A chemical process known as an exothermic reaction releases energy in the form of heat or light.

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What is the atomic number of arsenic (As)?<br> O A. 33<br> O B. 15<br> C. 75<br> D. 4<br> SUB
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33

Explanation:

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A persistent or nonvolatile chemical agent can: Select one: a. explode without warning and releases gases. b. remain in the envi
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Answer: A persistent or non-volatile chemical agent can remain on a surface for more than 24 hours.

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Non-volatile substance is defined as the one which does not readily evaporate into its surrounding. Generally, a non-volatile substance has strong intermolecular forces between its molecules.

A non-volatile substance will take more than 24 hours to remain on the surface.

On the other hand, a substance with weak intermolecular forces present in its molecules will readily evaporate into the atmosphere.

For example, acetic acid is a volatile substance and quickly evaporates into the atmosphere.

Thus, we can conclude that a persistent or non-volatile chemical agent can remain on a surface for more than 24 hours.

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The table is preventing the book from accelerating downwards.

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