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3 years ago

can someone help me with this please i will give you brainliest and answer whatever question you need help on as well

Chemistry

2 answers:

Rom4ik [11]3 years ago

5 0

Answer:

$jieeeeeerrrrrr$

Explanation:

Ira Lisetskai [31]3 years ago

4 0

Well technically I think this is hard to solve but I’ll give it a try

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Why are lab rules important

valentina_108 [34]

Answer:

Because you can die if you dont be safe my guy.

If you dont

be safe in a lab it can be very dangerus and some times even deadly.

Tyler is gay

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2 years ago

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Which substance is the oxidizing agent in the following reaction? Fe2S3 + 12HNO3 → 2Fe(NO3)3 + 3S + 6NO2 + 6H2O Which substance

aleksandr82 [10.1K]

Answer:

HNO3 is the oxidizing agent

Explanation:

Step 1:

The oxidizing agent is responsible to oxidize another. but itself undergoes a reduction .

Fe2S3:

Fe has an oxidation number of +3

S has an oxidation number of -2

HNO3:

O has an oxidation number of -2 ( we have 3 times O so this makes -6)

H has an oxidation number of +1

N has an oxidation number of +5

Fe(NO3)3

O has an oxidation number of -2 ( we have 3 times O so this makes -6)

Fe has an oxidation number of +3

Since NO3 has an oxidation number of -1; N has an oxidation number of +5

S alone has an oxidation number of 0

NO2:

O has an oxidation number of -2 (we have 2 times O, this makes -4)

N has an oxidation number of +4

Fe doesn't change from oxidation number. It stays +3

N goes from +5 to +4 → this is a reduction

S goes from -2 to 0 → this is an oxidation

The reducing agent is the compound that contributes the oxidized species (S).

The oxidizing agent contributes the reducing species (N)

The answer is HNO3

5 0

3 years ago

Explain why the replacement of the glutamic acid by valine changes the way that molecules of b-globin interact with each other.

aleksandr82 [10.1K]

For the answer to the question above, <span>Hydrophobic regions and hydrophilic regions in the molecules of the b-globin. The replacement causes these hemoglobin molecules to be stickies which gives the cell its sickle shape.
I hope this helps. Have a nice day!</span>

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3 years ago

Students are completing a table about a particular subatomic particle that helps make up an atom. The students have filled in on

Semmy [17]

Answer:
<span> Its location is in the nucleus, because the particle is a proton or a neutron.</span>

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3 years ago

Read 2 more answers

Identify the true statement(s). There may be one answer or more than one answer.FADH2 is a reducing agent. FADH2 is an oxidizing

adell [148]

Answer:

FADH2 is a reducing agent.

FAD is an oxidizing agent.

Explanation:

The full form of FAD is flavin adenine dinucleotide. It is mainly a redox-active coenzyme which is associated with the different proteins and is involved with the enzymatic reactions in the metabolism.

FAD is obtained by donating or accepting electrons.

In the citric acid cycle,

succinate + FAD → fumarate + $FADH_2$

Thus we see that FAD is an oxidizing agent while $FADH_2$ is a reducing agent.

8 0

3 years ago