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stira [4]
3 years ago
13

.....................................................................

Chemistry
1 answer:
lawyer [7]3 years ago
8 0

Answer:

B.

Explanation:

an excess is normally used to ensure that all the reactants completely react in the reaction to form the expected amount of yield.

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Using at least one complete sentence, identify what might be one problem with using nonrenewable resources?
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Non-renewable resources, such as coal, produce harmful gasses, such as carbon monoxide, polluting the air and decreasing air quality.
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What element is found in liver and is needed to prevent anemia or tired blood
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Iron is needed to prevent anemia.
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4 years ago
How many milligrams of product can be produced from the complete Diels-Alder reaction of 180. mg of anthracene and 100. mg of ma
ZanzabumX [31]

Answer: It will be produced 276,3 mg of product

Explanation: The reaction of anthracene (C14H10) and maleic anhydride (C4H2O3) produce a compound named 9,10-dihydroanthracene-9,10-α,β-succinic anhydride (C18H12O3), as described below:

C14H10 + C4H2O3 → C18H12O3

The reaction is already balanced, which means to produce 1 mol of C18H12O3 is necessary 1 mol of anthracene and 1 mol of maleic anhydride.

1 mol of C14H10 equals 178,23 g. As it is used 180 mg of that reagent, we have 0,001 mol of anthracene. With it, the reaction produces 0,001 mol of C18H12O3.

As 1 mol of C18H12O3 equals 276,3 g, the mass produced is 276,3 mg.

3 0
3 years ago
Hello guys sorry for spamming again but I have to do this whole thing and the end of trimester for my school is today so I need
Aloiza [94]

Answer:

all you need if yo look up and say do plants grow without soil but yes they can grow without soil but they cannot grow without the necessities that soil provides.

4 0
3 years ago
What is the difference between nitrite and nitrate​
Dahasolnce [82]

Answer:

<u>Nitrite:</u>

  • Formula : NO₂⁻
  • 1 nitrogen molecule and two oxygen molecules with an excess electron.
  • Angular shape

<u>Nitrate:</u>

  • Formula: NO₃⁻
  • 1 nitrogen molecule and three oxygen molecules with an excess electron.
  • Trigonal planar structure.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

4 0
2 years ago
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