1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balu736 [363]
3 years ago
13

Polyesters are formed from the reaction of __________.

Chemistry
1 answer:
Mrac [35]3 years ago
4 0

Answer:

The answer is C. a diol and a dicarboxylic acid

Explanation:

Because Esterification (formation of an ester) is a process that requires an alcohol to react with a carboxylic acid.

Polyester means many ester units.

one alcohol + one carboxylic acid make one ester

thus more than one of each functional groups will make more than on ester unit.

That is why diol (2OH functional groups) + dicarboxylic acid (2 Carboxyl groups) will make polyesters.

You might be interested in
What are the two measurement systems the thermometer uses? Which one is most commonly used for science? Why?
bija089 [108]
The two are Celsius and Kelvin. the most used is Kelvin. the reason is that it is more precise measurement.  
4 0
3 years ago
What is the volume of 6.50g of gold if the density of gold is 19.3g/ml?
Jet001 [13]

Answer:

0.33 ml

Explanation:

Formula for density: p = m/V (where p is <em>density</em>, m is <em>mass</em> and V is <em>volume</em>)

So, by applying the above formula:

19.3 =  \frac{6.5}{v}

v = 0.33 \: ml

7 0
3 years ago
Just a curious question to the Chemists,
Vikki [24]

Answer:

well the world would be shocked

Explanation:

and suprise

8 0
3 years ago
Which one of the following does not describe an acid​
Irina-Kira [14]

Answer:

C a sour tasting substance

Explanation:

The taste of an acid does not matter. An acid is an aqueous solution meaning that it is solvent in water.

8 0
2 years ago
Read 2 more answers
I need help with balancing equations I'm doing homework and idk what to do here can you give me the answers please lol
amm1812

It's pretty easy to balance equations! Basically you want to make sure that the number of each compound is equal on both sides of the arrow.

For example number one is

Fe + H2SO4 -> Fe2(SO4)3 + H2

A 3 in front of H2SO4 because there's a subscript of 3 on the right side.

Then a 3 in front of H2 because of the previous step.

Then add a 2 in front of Fe because of the 2 subscript in Fe2(SO4)3

Then add a 1 in front of Fe2(SO4)3 because you already have an equal number of each element.

<u>2</u>Fe + <u>3</u>H2SO4 -> <u>1</u>Fe2(SO4)3 + <u>3</u>H2

I hope this explanation helps! You should really do your homework because practice is everything when it comes to chemistry. You'll need to know how to do it for exams.  

3 0
3 years ago
Other questions:
  • What are other signs of chemical change
    6·1 answer
  • What happens to earth materials when water flows over landforms?
    11·1 answer
  • What is the limiting reagent when 49.84 g of nitrogen react with 10.7 g of hydrogen to make ammonia
    6·1 answer
  • Which of the following atoms forms an ionic bond with a sulfur atom?
    7·1 answer
  • 7. What initial volume of water vapor would have been present at 310 K if the volume now
    15·1 answer
  • According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to
    13·2 answers
  • How do prevailing winds affect air temperature?
    14·1 answer
  • Which of these ingredients is important in making plastics?
    7·1 answer
  • A compound being used in experimental medicine is 78.14% boron (B) and 21.86% hydrogen (H). The empirical formula of the compoun
    10·1 answer
  • Why do we need digital technology in school?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!