13. Acid-catalyzed dehydration-condensation reactions of carboxylic acids and alcohols produce chemicals called
esters.
i. Using carbon skeletal notation, write the dehydration-condensation reaction that occurs between ethanol
and butanoic acid.
ii. What is the name of this ester?
Answers
Answer:
A condensation reaction joins two larger molecules by splitting out a smaller molecule — usually water or ammonia — between them.
In an esterification reaction, an OH from the acid and an H from the alcohol form a molecule of water.
The larger parts join to form the ester.
Ethanol and butanoic acid react to form ethyl butanoate.
Acid-catalyzed dehydration-condensation reactions of carboxylic acids and alcohols produce chemicals called "esters". The dehydration-condensation reaction occurs between 'ethanol' and 'butanoic acid' giving an ester called as "ethyl butanoate".
What is an ester and how it is formed?Esters are produced when carboxylic acids are heated with alcohols in the presence of an acid catalyst. The catalyst is usually concentrated sulphuric acid. Dry hydrogen chloride gas is used in some cases, but these tend to involve aromatic esters (ones containing a benzene ring).Esters are represented by the formula RCOOR', where R and R' are hydrocarbon groups. The chemical reaction occurring in the formation of the ester is known as an esterification reaction.The reaction that occurs between ethanol and butanoic acid:Ethanol reacts with butanoic acid in the presence of an acid-catalyst and gives ethyl butanoate as ester and water as products. If an acid reacts with a base, salt and water are the products. But ester is not a salt.
i) The carbon skeletal notation for the given reaction is shown below.
ii) The ester is named "ethyl butanoate".
Learn more about esterification here:
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What is the resultant force of a motorcycle travelling at 500 N with an air resistance of 50 N
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The resultant force is equal to :
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Answers
Answer:
Once an enzymatic reaction is completed, the enzyme releases substrates.
Explanation:
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А
0.979 dg
B 97.9 dg
C979 dg
D
9,790 dg
Answers
Answer:
C) 979 dg
Explanation:
1 Decagram = 0.01 Kilogram, and 1 kilogram = 100 Decagram.
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Answer:
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Explanation:
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Answer:
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Answers
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Explanation: Hope this help:)
What was John Dalton's contribution to the development of the atomic theory?
A
Dalton recognized that tiny atoms combined to form complex structures.
B
Dalton recognized the presence of electrons around a nucleus.
C
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Answers
Answer:
A. Dalton recognized that tiny atoms combined to form complex structures.HELLLPP!!!
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Answer:
I would say D) A new substance is formed with different properties.
It doesn't nesisarally have to have a specific change (except mass), but it could be a wide variety of changes.
Answer:
A New substances form with different properties
Explanation:
When two different chemical substances are combined, they form new substances with different properties. The properties may be modified and the substance formed may exhibit better characteristic than individual properties of its components. For example, when sodium and chlorine combine, they form sodium chloride. Sodium chloride has different properties than any of the constituents.
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Explanation:
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45 m/s
45 m/s north
0 0 m/s south
0 m/s
Save and Exit
Next
Sunt
Mark this and retum
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A flagpole is an example of what type of pulley system?
A. Movable pulley
B. Fixed pulley
C. Block and tackle?
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Answer:
B
Explanation:
i learned the pulley system in school
Answer:
B. Fixed pulley
Explanation:
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Answers
1.First take a bottle and fill it with water
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3.make a hole in the points you have marked
Observation
The liquid exerts pressure equally and perpendicularly in all directions
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Answer:
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Answer:
The balloon would fall because carbon dioxide, the gas you exhale and blew up with, is denser than air and therefore will fall. Helium however, is less dense than air and floats.
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Answer:
in the chemical trial.
Explanation:
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Answers
Answer:
Applied science is a discipline that is used to apply existing scientific knowledge to develop more practical applications, for example: technology or inventions. In natural science, basic science (or pure science) is used to develop information to explain phenomena in the natural world.
Answer:
• Because engineers apply science and its theories into practical situation
Take an example of;
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Publishing results of research projects in peer-reviewed journals enables the scientific and medical community to evaluate the findings themselves. It also provides instructions so that other researchers can repeat the experiment or build on it to verify and confirm the results.
helppppppppppppppppppppppppp
Answers
Answer:
lose 1 2+
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Can someone help please?
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Answers
Answer: 63.55
Explanation:
The attached chart shows the calculation. The orange line points to the % abundance of Cu-65, which is the difference of 100% less the % Abundance of Cu-65 (since there are only 2 isotopes).
The weighted average contribution of each istope is calculated (blue arrow) and then summed to find the atomic mass of copper.
The overall chemical reaction for photosynthesis
is shown below:
6CO2 + 6H2O → C6H1206 + 602
What mass of glucose (C6H1206) can form from
71.89 g CO2? (Molar mass of C6H1206 = 180.18
g/mol; molar mass of CO2 = 44.01 g/mol)
71.89 g CO2 =
Ig Cg H 1206
DONE
Answers
Answer:
49.05 g
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Answers
Answer:b
Explanation:
Please help!
Answer please!
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Answer: a
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Answers
Answer:
A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom. (3) Atoms can neither be created nor destroyed.
Explanation:
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Answer:
Some varieties of potato, such as Russet and King Edward, are more suitable for baking than others, owing to their size and consistency. Despite the popular misconception that potatoes are fattening, baked potatoes can be part of a healthy diet.[2]
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Spacing: Examiners determine whether the letters have equal spaces from each other or crowded.
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Answers
Speed = v = 3×10⁸ m/s
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Frequency = f
v = fλ
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f = v/λ
f = 3×10⁸ / 5.8×10⁻⁷
f = 0.517×10⁸⁺⁷
f = 5.17×10¹⁴ Hz
i hope this will help but if im wrong then it will be 5.16x10¹⁴
WILL MARK AS BRAINLIEST IF CORRECT
The temperature of an enclosed gas at constant pressure changes from 400 K to 100 K atm. What happens to the volume of the gas?
a
The volume will increase to 4 times its original volume.
b
The volume will stay the same.
c
The volume will decrease to 1/2 of its original volume.
d
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e
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Answers
Answer:
a
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they are directly proportional. if one goes down the other goes up while pressure is constant
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Answers
Answer:
It remains the same
Explanation:
The law of conservation of mass states that, during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.