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marissa [1.9K]
3 years ago
14

All synthetic materials ultimately come from

Chemistry
1 answer:
Leno4ka [110]3 years ago
7 0

Answer:

petroleum, a fossil fuel, is extracted from the earth and mechanically transformed into fibers for clothing.

Explanation:

synthetic materials, like polyester, nylon and acrylic, don't exist naturally but are made in factories. Synthetics are created through an industrial manufacturing process in which

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One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

6 0
3 years ago
What is the colour change when universal indicator is added to apple juice​
kherson [118]

Answer:

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Will chlorine gas effuse more quickly than ammonia gas
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This statement is false due to the fact that the ammonia gas has the lower molar mass.
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What is the name of the covalent compound ccl4?
sleet_krkn [62]
The name of the covalent compound CCl4 is 'Carbon tetrachloride'.

Hope this helps!
8 0
3 years ago
1. The electronegativities of the period-3 elements are listed on the transparency. Calculate the
Firdavs [7]
The correct answer is c. Please give me brainlest let me know if it’s correct or not thanks bye
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