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Nataliya [291]
3 years ago
5

Which structure diagram completes the table of physical structures of the main functional groups?

Chemistry
2 answers:
azamat3 years ago
7 0

Answer:

B on edge 2020

Explanation:

expeople1 [14]3 years ago
4 0
<h3><u>Answer;</u></h3>

R'

. |

C = O

. |

R

<h3><u>Explanation; </u></h3>
  • Ketones are byproducts of the breakdown of fatty acids.<u> They are organic compounds with the structure R(C=O)R', where R and R' can be a variety of carbon-containing substituents.</u>
  • Like aldehydes ketones contain a carbonyl group that is a carbon oxygen double bond.

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The change in entropy is related to the change in the number of moles of gas molecules. Determine the change in moles of gas for
tester [92]

The given question is incomplete. The complete question is:

The change in entropy is related to the change in the number of moles of gas molecules. Determine the change in moles of gas for each of the reactions and decide if the entropy increases decreases or has little to no change:

A. K(s)+O_2(g)\rightarrow KO_2(s)

B. CO(g)+3H_2(g)\rightarrow CH_4(g)+H_2O(g)

C. CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

D. N_2O_2(g)\rightarrow 2NO(g)+O_2(g)

Answer: A. K(s)+O_2(g)\rightarrow KO_2(s) : decreases

B. CO(g)+3H_2(g)\rightarrow CH_4(g)+H_2(g) : decreases

C. CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g): no change

D. N_2O_2(g)\rightarrow 2NO(g)+O_2(g) : increases

Explanation:

Entropy is defined as the randomness of the system.

Entropy is said to increase when the randomness of the system increase, is said to decrease when the randomness of the system decrease and is said to have no change when the randomness remains same.

In reaction K(s)+O_2(g)\rightarrow KO_2(s), as gaseous reactant is changed to solid product, entropy decreases.

In reaction CO(g)+3H_2(g)\rightarrow CH_4(g)+H_2O(g), as 4 moles of gaseous reactants is changed to 2 moles of gaseous product, entropy decreases.

In reaction CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g), as 3 moles of gaseous reactants is changed to 3 moles of gaseous product, entropy has no change.

In reaction  N_2O_2(g)\rightarrow 2NO(g)+O_2(g) , as 1 mole of gaseous reactant is changed to 3 moles of gaseous product, entropy increases.

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3 years ago
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4/5 × 0.200 moles= 0.160moles
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3 years ago
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Density = mass / volume

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Thus, the density of the sample is 3 grams per ml or 3g/ ml
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3 years ago
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