Chemistry Middle School

41. Which pair of compounds could combine to produce an ester?

I. CH3- CH2 - CH2 - CH3


II. CH3- CH2 - CH2-CH2-OH


III. CH3- CH2 - CH2-COOH


IV. CH3- CH2- CH2- COH



a. I and II
b. II and III
c. II and IV
d. III and IV



Answers

Answer 1

Answer: b. ii and iii

Explanation:

The ester, Butyl Butanoate is formed when Butanol reacts with Butanoic acid

as seen below;

CH3-CH2-CH2-CH2-OH  +  CH3-CH2-CH2-COOH     ---->

Butanol                                     Butanoic acid

CH3-CH2-CH2-COOCH2-CH2-CH2-CH3   +          H2O

Butyl Butanoate                                                      Water

Related Questions

Atoms are very small. Approximately how many atoms would it take to
make a stack as thick as a potato chip?
A. Thousands
B. Hundreds
C. Billions
D. Millions
Reset Selection

Answers

Answer:

Billions

Explanation:

A full stop contains almost trillion of atoms.

Billions of atoms would it take to make a stack as thick as a potato chip. Hence, option C is correct.

What are atoms?

An atom consists of a central nucleus that is usually surrounded by one or more electrons.

Billions of atoms would it take to make a stack as thick as a potato chip. Hence, option C is correct.

Learn more about atoms here:

https://brainly.com/question/1566330

#SPJ2

what causes the difference genetically identical organisms​

Answers

Answer:

the epigenetic perspective. ... Such variation among organisms with virtually identical chromosomal DNA sequences has largely been attributed to the effects of environment.Explanation:

Which describes a climate effect on the rate of weathering? Cold climates favor mechanical weathering. Chemical reactions occur slower at higher temperatures. Lower precipitation levels lead to more chemical reactions. The chemical reaction rates of minerals are not impacted by temperature.

Answers

Answer:

the answer is Cold climates favor mechanical weathering.

Explanation:

I got 100% on the Quiz

Statement that describes climate effect on the rate of weathering as regards this question is A:Cold climates favor mechanical weathering.

Weathering can be regarded as disaggregation of rocks into smaller bits by the actions of agents of weathering such as man, animals, water and so on.

However, climate can also have effect on the rate of weathering, when there is cold climate, mechanical weathering is favoured.

Option B,C,D are wrong because high temperature brings about increase in rate of chemical weathering.

Therefore, option A is correct.

Learn more at:

https://brainly.com/question/21251700?referrer=searchResults

Who is correct? Reggie, because baking and melting cause bonds to be broken, leading to a chemical change. Reggie, because objects that are heated always undergo chemical changes. Charlotte, because melting objects only sometimes cause a chemical change. Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.

Answers

Answer:  Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.

Explanation: Baking is a chemical change you cant turn it back to what it was before. Its chemical properties have changed. Melting is a physical change. Its chemical properties are still the same it has not changed. It just changed it's physical form but the object is still the object.

Answer:

Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.

Explanation:

took the quiz on edge

Which of the following would have the best thermal conductor properties?
A. A thick mug
B. A plastic cup
Ос. A paper cup
D. A cup made of metal

Answers

Answer:

D

Explanation:

metal is a major cunductor of heat

A cup made of metal would have the best thermal conductor properties.

The answer is option D.

Is a metal cup a good conductor of heat?

Metals have unfastened electrons that are not bounded to the atoms. those electrons are unfastened to move around within the metal, colliding with the metal atoms and shifting heat to them successfully. This makes metals higher conductors of warmth than maximum other materials.

Which of the following would have a high-quality thermal conductor?

Diamond is the leading thermally conductive material and has conductivity values measured 5x better than copper, the maximum synthetic metallic inside the united states of America. Diamond atoms are composed of a simple carbon spine this is a really perfect molecular structure for an effective heat switch.

Learn more about thermal conductors here: https://brainly.com/question/18507496

#SPJ2

Other Questions
what are the coordinates of that center of a circle if the endpoints of its diameter are a(8,-4) and b(-3,2)? Which form of government shares goods and services equally, and the political power is disturbing among the people? A hostile interaction between people over the Internet is called a _________.A.WeboutB.WebcastC.FlameD.FlashPlease select the best answer from the choices providedABCD Small business owners' unique selling points (also known as benefits) that customers can expect from your goods or services, including benefits that differentiate your offering from those of the competition is known as: Change all of the numbers in the data area of your worksheet so that it looks like this:Data 4 Unit sales 10,000 units 5 Selling price per unit $20 per unit 6 Variable expenses per unit $8 per unit 7 Fixed expenses $90,000A) What is the break-even in dollar sales?B) What is the margin of safety percentage?C) What is the degree of operating leverage?1. Using the degree of operating leverage and without changing anything in your worksheet, calculate the percentage change in net operating income if unit sales increase by 20%.2. Confirm your calculations in Requirement 3 above by increasing the unit sales in your worksheet by 20% so that the Data area looks like this:Data 4 Unit sales 12,000 units 5 Selling price per unit $20 per unit 6 Variable expenses per unit $8 per unit 7 Fixed expenses $90,0001. Using the degree of operating leverage and without changing anything in your worksheet, calculate the percentage change in net operating income if unit sales increase by 20%.2. Confirm your calculations in Requirement 3 above by increasing the unit sales in your worksheet by 20% so that the Data area looks like this:A. What is net operating income?B. By what percentage did the net operating income increase? Solve px + 12 = 17 for x.A. x =5/pB. X =29/pC. X= 5-pD. x = p + 5 Any answers plzzzzzz Love and anger are examples ofcompound nounscollective nounsabstract nounsproper nouns peace between arabian muslium traders and the indian hindus came as a result of the fall of which empire? Choose the best estimate for the weight of a strawberry A 1 ounce B 8 ounces What single decimal multiplier would you use to increase by 4% followed by a 3% increase In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria In which country are Shi'a imams particularly important and influential? a. Iran c. Saudi Arabia b. Afghanistan d. Syria Consider the set of sequences of seven letters chosen from W and L. We may think of these sequences as representing the outcomes of a match of seven games, where W means the first team wins the game and L means the second team wins the game. The match is won by the first team to win four games (thus, some games may never get played, but we need to include their hypothetical outcomes in the points in order that we have a probability space of equally likely points).A. What is the probability that a team will win the match, given that it has won the first game?B. What is the probability that a team will win the match, given that it has won the first two games? C. What is the probability that a team will win the match, given that it has won two out of the first three games? A saleperson receives a base salary of $37,000 in commission of 8% of the total sales of the year if the sales person sells $265,000 of merchandise what is his total salary for the year Can someone please help me Im stuck The government establishes an effective price ceiling for a gallon of milk. What will be the result of this ceiling? a) It will create a surplus b) It will create a shortage c) It will have no effect d) It will cause an increase in demand e) it will cause an increase in supply please help First we need to covert 29 inches to miles. You do this by taking 29 and dividing it by 12. Then divide your answer by 5280. Multiply this answer by 5 (number of revolutions) and then multiply by 60 to get your answer in miles/hour. La base de un rectngulo es cuatro veces su altura. Hallar el rea del rectngulo si su permetro es 120cm a) 476 b) 376 c) 476 d) 576 Privatization of a stateminusowned monopoly can A. allow governments to capture future producer surplus. B. reduce bribery of government officials. C. allow governments to be more efficient. D. increases chances of reelection for politicians. Please answer this correctly I want genius expert or ace people to answer this correctly as soon as possible as my work is due today