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kozerog [31]
4 years ago
15

3CI02+NO_3-+H_2O--> NO +3CIO3-+2H+In the above redox reaction, use oxidation numbers to identify the element oxidized, the el

ement reduced, the oxidizing agent and the reducing agent. name of the element oxidized: name of the element reduced: formula of the oxidizing agent: formula of the reducing agent:
Chemistry
1 answer:
SVEN [57.7K]4 years ago
5 0

Answer:

The element which is oxidized is = Chlorine

The element which is reduced is = Nitrogen

ClO_2 that is chlorine dioxide is acting as a reducing agent.

NO_3^{-} that is nitrate is acting as an oxidizing agent.

Explanation:

Oxidation reaction is defined as the reaction in which an atom looses its electrons. Here, oxidation state of the atom increases.

X\rightarrow X^{n+}+ne^-

Reduction reaction is defined as the reaction in which an atom gains electrons. Here, the oxidation state of the atom decreases.

X^{n+}+ne^-\rightarrow X

Oxidizing agents are defined as the agents which oxidize other substance and itself gets reduced. These agents undergoes reduction reactions.

Reducing agents are defined as the agents which reduces the other substance and itself gets oxidized. These agents undergoes reduction reactions.

3ClO_2+NO_3^{-}+H_2O\rightarrow NO +3ClO3^{-}+2H^+

Oxidation state of chlorine in ClO_2 =+4

Oxidation state of nitrogen in nitrate ion = +5

Oxidation state of nitrogen in NO = +2

Oxidation state of chlorine in in ClO_3^{-} =+7

The element which is oxidized is = Chlorine

The element which is reduced is = Nitrogen

ClO_2 that is chlorine dioxide is acting as a reducing agent.

NO_3^{-} that is nitrate is acting as an oxidizing agent.

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NEED HELP ASAP PLS
densk [106]

Answer:

31.60% phosphorus

Explanation:

To find the percent by mass, you first calculate the total mass and then the mass of phosphorus, and finally divide phosphorus mass by total.

Phosphorus mass: the molar mass of P is 30.97 g/mol, and since there's 1 mole of P, we just have 30.97 g.

Total mass: we add all the molar masses of the components together.

We have 3 moles of H, so we multiply 3 by 1.008 g/mol = 3.024 g H.

We already calculated the mass of phosphorus: 30.97 g P.

We have 4 moles of O, so we multiply 4 by 16.00 g/mol = 64.00 g O.

The total is then the sum: 3.024 + 30.97 + 64.00 = 97.994 g ≈ 97.99 g

Now, to find the percentage, we take 30.97 g P and divide by 97.99:

30.97/97.99 ≈ 0.3160 ⇒ 31.60% P

Thus, the answer is 31.60% phosphorus.

Hope this helps!

5 0
3 years ago
Can I get some help please? It is asking me to click where the three circles intersect. When I do, It tells me that I’m wrong. 1
Anit [1.1K]

Answer:

Jefferson

Explanation:

they all come to that

5 0
3 years ago
A 4.98g sample of aniline (C6H5NH2, molar mass is 93.13g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25kJ
natima [27]

 the value  of  delta H°  for aniline = -3201. 5   Kj/mol


<u><em> calculation</em></u>

 Step 1: find heat

Q ( heat)  =  C  ( specific heat capacity)  x ΔT  ( change in temperature)

  C= 4.25 kj/c°

 ΔT = 69.8-29.5  = 40.3 c°

 Q= 4.25 kj/c    x  40.3 c = 171.28 kj

Step 2:  find the moles of aniline

  moles  = mass/ molar  mass

 = 4.98 g/ 93.13 g/mol =0.0535  moles

Step 3 :  find delta H

 171.28 kj   / 0.0535=3201.5 kj/mol


since the reaction is  exothermic  delta  H = -3201.5 Kj/mol

 


3 0
3 years ago
At rest, a neuron has a lower concentration of sodium than the surrounding fluid. The neuron also has a higher concentration of
pshichka [43]

Answer:

a. Remaining at rest requires the use of ATP.

Explanation:

The resting membrane potential is maintained by the sodium-potassium pump. The sodium potassium pump does this by actively pumping sodium ions out of the cell and potassium ions inside the cell in a ratio of 3:2. This movement of ions by the sodium-potassium pump is against their concentration gradient. In a neuron at rest, there are more sodium ions outside the cell than there are inside the cell. Also, there are are more potassium ions inside the cell than there are outside the cell. However, there are ion channels through which these ions enter and leave the cell. Sodium ion channels allow sodium to enter the cell following its concentration gradient, whereas, potassium ion channels allow potassium to leave the cell following its concentration gradient. However, more potassium ions leave the cell than do sodium ions enter the cell because of the higher permeability of the cell to potassium ions.

In order to maintain the resting membrane potential, the sodium potassium pump powered by the hydrolysis of an ATP molecules pumps sodium ions out of the cell and potassium ions into the cell.

<em>Therefore, the correct option is A, as ATP is needed by the sodium-potassium pump in order to maintain the resting membrane potential.</em>

6 0
3 years ago
Given your results of Part III, predict the solubility of the following mixtures. Explain your answers. a) Methanol (CH,OH) in w
Setler79 [48]

Answer:

( a ) soluble

( b ) soluble

( c ) insoluble

Explanation:

Solubility is determined by the principle ,  "like dissolves like" .

i.e. ,<u> if a compound is polar then it will dissolve in a polar compound only , </u>and

<u>if a compound is non - polar then it will dissolve in a non - polar compound only .</u>

Hence , from the question ,

( a )

Methanol and water as we know are both polar species , hence , according to the principle - soluble .

( b )

Hexane and cyclohexane

Both the species are polar species , hence , according to the principle - soluble .

( c )

Hexane and water

In this case ,

Hexane , is non polar and water is polar , hence , the mixture will be non soluble .

6 0
3 years ago
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