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Anastasy [175]
3 years ago
12

Name the type of polymer formed when propane-1,3-diol and butanedioic acid react together.

Chemistry
1 answer:
Alex Ar [27]3 years ago
8 0

Answer:

Although PPT was initially prepared from terephthalic acid (TPA) and 1,3-propanediol (PDO) in the 1950s, it has been mainly synthesized by transesterification of PDO with dimethyl terephthalate (DMT) similar to poly(ethylene terephthalate) (PET) and poly(butylene terephthalate) (PBT).

Explanation:

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Plants don't grow as well when ____ has been lost.
marta [7]

Answer

the answer is b

explanation

8 0
3 years ago
Which process moves molecules and has these traits?
Ostrovityanka [42]
Diffusion is the right answer, because technically the only acceptable answers here are diffusion and osmosis. But osmosis occurs in a semi-membrane, leaving no choice but diffusion.
(My bad if my answer is incorrect!)
8 0
3 years ago
Read 2 more answers
URGENT PLEASEEEE, WILL GIVE 100 POINTS
Amanda [17]

Let's balance

  • 2N_2O+3O_2---->4NO_2

Moles of laughing gas

  • 9/44
  • 0.2mol

2 moles need 3 mol O_2

1 mol needs= 1.5mol O_2

moles of O_2.

  • 1.5(0.2)
  • 0.3mol

#2

  • 3 molO_2 produces 4 mol smog
  • 1 mol produces 4/3=1.3mol smog

Moles Of O_2

  • 7.5/32
  • 0.2mol

Moles of smog

  • 1.3(0.2)=0.26mol

Mass

  • 0.26(46)
  • 11.96g
3 0
2 years ago
Read 2 more answers
Use the periodic table to calculate the molar mass of each compound below. Give your answer to the correct number of significant
agasfer [191]
From the periodic table you get the atomic masses of each element.

These are the values that I have in my periodic table (use those numbers of your periodic table if your teache gave you a specific one)

Na: 23 g/mol
O: 16 g/mol
H: 1 g/mol
C: 12 g/mol
Ca: 40 g/mol
S: 32 g/mol
Mg: 24 g/mol
P: 31 g/mol

Now I will do some examples and you do the others:

1) NaOH: 1 atom of Na * 23 g/mol + 1 atom of O * 16 g/mol + 1 atom of H * 1 g/mol

=> 1*23g/mol + 1*16g/mol + 1*1g/mol = 40 g/mol

2) H2O

=> 2 atoms of H * 1 g/mol + 1 atom of O * 16 g/mol = 2*1g/mol + 1*16g/mol = 18 g/mol

3) Glucose: C6H12O6

6*12 g/mol + 12 * 1g/mol + 6*16 g/mol = 72g/mol + 12g/mol + 96 g/mol = 180 g/mol

4) CaSO4:

1*40 g/mol + 1*32g/mol + 4*16g/mol = 136 g/mol

Now you only have to do the last one by your own.


7 0
4 years ago
Read 2 more answers
Propenoic acid is an unsaturated carboxylic acid. Describe how you could show
Anestetic [448]

Answer:

Tests for unsaturation involves addition across the multiple bonds in the unsaturated compound.

Explanation:

In organic chemistry, we define an unsaturated compound as any compound that contains a double or triple bond. These multiple bonds are also known as pi bonds.

There are two major tests for unsaturation which shall both be discussed here.

The first test for unsaturation is by the use of bromine water. The unknown sample is passed through a solution of bromine water which normally appears reddish brown. The bromine water becomes decolorized due to addition of bromine across the multiple bond. This is a standard test for unsaturation.

Secondly, unsaturated compounds decoulourize a solution of potassium permanganate when passed through it. This alone can not be used as a distinctive test for unsaturation.

Propenoic acid will give a positive test to the both reagents showing that it contains multiple bonds, in this particular instance, a double bond.

4 0
3 years ago
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