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Agata [3.3K]
3 years ago
10

Chemicals that help chemical reactions occur at faster rates in living organisms are known as _______.

Chemistry
2 answers:
docker41 [41]3 years ago
4 0
I believe they are D. Organic Catalysts.
Taya2010 [7]3 years ago
4 0
I think the correct answer from the choices listed above is option D. <span>Chemicals that help chemical reactions occur at faster rates in living organisms are known as organic catalysts. They are mostly known as enzymes. Hope this answers the question.</span>
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WILL MARK BRANILEST
ahrayia [7]

Answer:

FeCl3 is the limiting reactant

O2 is in excess

Theoretical yield Cl2 = 9.84 grams

The % yield is 96.5 %

Explanation:

Step 1: Data given

Mass of FeCl3 = 15.0 grams

Moles O2 = 4.0 moles

Mass of Cl2 produced = 9.5 grams

Step 2: The balanced equation

4FeCl3 + 3O2 → 2Fe2O3 + 6Cl2

Step 3: Calculate moles FeCl3

Moles FeCl3 = mass FeCl3 / molar mass FeCl3

Moles FeCl3 = 15.0 grams / 162.2 g/mol

Moles FeCl3 = 0.0925 moles

Step 4: Calculate limiting reactant

FeCl3 is the limiting reactant. Because we have way more (more than ratio 3:4) moles O2 than FeCl3. It will completely be consumed (0.0925 moles). O2 is in excess. There will react = 0.069375 moles O2

There will remain 4.0 - 0.069375 = 3.930625 moles

Step 5: Calculate moles Cl2

For 4 moles FeCl3 we need 3 moles O2 to produce 2 moles Fe2O3 and 6 moles Cl2

For 0.0925 moles FeCl3 moles we'll have 6/4 * 0.0925 = 0.13875 moles Cl2.

Step 6: Calculate mass Cl2

Mass Cl2 = moles * molar mass

Mass Cl2 = 0.13875 moles * 70.9 g/mol

Mass Cl2 = 9.84 grams

Step 7: Calculate % yield

% yield = (actual yield / theoretical yield) * 100%

% yield = (9.5 grams / 9.84 grams ) * 100%

% yield = 96.5 %

The % yield is 96.5 %

4 0
3 years ago
Which of the following is true regarding nuclear fission and nuclear fusion?
Zarrin [17]
<h2>Nuclear Fission and Nuclear Fusion - Option C</h2>

Nuclear fission and nuclear fusion both of these processes can provide energy. Nuclear fission is the process in which heavy nucleus splits into smaller parts. When they split into smaller particles then it releases energy.

On the other hand, nuclear fusion is the process in which small particles fuse together to form a heavy nucleus. With the formation of heavy nucleus, it also provides energy.

Therefore, both these processes release or provide energy.

3 0
3 years ago
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Rufina [12.5K]
A. hydroxide is the answer
3 0
3 years ago
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The formula weight of magnesium hydroxide is________ amu.<br> amu.
wlad13 [49]

Answer:

58.316  is the formula weight of magnesium hydroxide

5 0
2 years ago
What contains more hydrogen atoms, 1.0 mole of H20 or 1.0 moles of НЗО?
Vladimir [108]
A mole of an element refers to 6.02e23 atoms so they would have the same amount of atoms
4 0
3 years ago
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