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Elis [28]
3 years ago
10

Senthil wants to make a fabric that can substitute silk. Name the fabric that substitutes silk and explain the process of prepar

ing it.
​
Chemistry
1 answer:
Serhud [2]3 years ago
8 0

Answer:

Rayon

Explanation:

Rayon is a man-made fibre prepared from a natural raw material called cellulose by chemical treatment. The cellulose required for making rayon is obtained from wood pulp. Rayon is obtained by the chemical treatment of wood pulp. Wood pulp is dissolved in an alkaline solution to form sticky liquid called viscose.

hope this helps

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Diano4ka-milaya [45]

Answer:

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4 0
3 years ago
38.25 grams of silicon is combined with 14.33 grams of nitrogen gas. How many grams of silicon nitride can be formed if nitrogen
zhuklara [117]
3Si + 2N2 --> Si3N4 (as given) 

n(Si) = m/MM = 38.25/28.085 = 1.3619 mol
n(N2) = 14.33/2*14.007 = 0.5115 mol

Therefore, N2 is limiting and Si is in excess 
The molar ratio of 2N2:Si3N4 is 2:1 
So, 0.0575 mol of silicon nitride is formed (dividing 0.5115 by 2) 

m of silicon nitride= n*mm = 0.0575*140.283 = 8.06627... g 
= 8.066g (4 significant figures) 

(hopefully it is right, but double check in case i did something wrong) :) 
6 0
3 years ago
Calculate the average atomic mass of element X using the table below. Then use the periodic table to identify the element. Separ
Ksenya-84 [330]

Answer:

126.8, Iodine

Explanation:

  • mass ×abundance/100
  • (126.9045×80.45/100)+(126.0015×17.23/100)+(128.2230×2.23/100)
  • 102.1+21.7+3=126.8

<em>IODINE</em><em> </em><em>has</em><em> </em><em>an</em><em> </em><em>atomic</em><em> </em><em>mass</em><em> </em><em>of</em><em> </em>126.8 or 126.9

4 0
3 years ago
The rows of the periodic table are called groups because similar elements reside next to each other on the modern periodic table
forsale [732]

Answer:

True

Explanation:

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

3 0
3 years ago
Read 2 more answers
The diagram shows the basis for forming which of the following?
Montano1993 [528]
The answer is prolly A or B
8 0
3 years ago
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