Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of Ni and H+ in the balanced reaction? Ni2+(aq) + NH4+(aq) → Ni(s) + NO3-(aq)

Answers

Answer 1

In this case, the problem is asking for the balance of a redox reaction in acidic media, in which nickel is reduced to a metallic way and nitrogen oxidized to an ionic way.

Thus, according to the given information, it turns out possible for us to balance this equation in acidic solution by firstly setting up the half reactions:

[tex]Ni^{2+}+2e^-\rightarrow Ni^0\\\\N^{3-}H_4^++3H_2O\rightarrow N^{5+}O_3^-+8e^-+10H^+[/tex]

Next, we cross multiply each half-reaction by the other's carried electrons:

[tex]8Ni^{2+}+16e^-\rightarrow 8Ni^0\\\\2N^{3-}H_4^++6H_2O\rightarrow 2N^{5+}O_3^-+16e^-+20H^+[/tex]

Finally, we add them together to obtain:

[tex]8Ni^{2+}+2N^{3-}H_4^++6H_2O\rightarrow 8Ni^0+2N^{5+}O_3^-+20H^+[/tex]

Which can be all simplified by a factor of 2 to obtain:

[tex]4Ni^{2+}+N^{3-}H_4^++3H_2O\rightarrow 4Ni^0+N^{5+}O_3^-+10H^+\\\\4Ni^{2+}(aq)+NH_4^+(aq)+3H_2O(l)\rightarrow 4Ni(s)+NO_3^-(aq)+10H^+(aq)[/tex]

Hence, the coefficients in front of Ni and H⁺ are 4 and 10 respectively.

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Related Questions

Electromagnetic waves travel fastest through
A -Solid
B -Liquid
C -Gas
D-Vacuum

Answers

Answer:

Gas

Explanation:

Mechanical waves- travel faster in solids & slowest in gases

Electromagnetic waves- travel fastest in empty space and slowest in solids.

Because they are so close, than can collide very quickly, i.e. it takes less time for a molecule of the solid to 'bump' into its neighborough. Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. The distances in liquids are shorter than in gases, but longer than in solids.

Answer C- Gas

Explanation:

Electromagnetic waves- travel fastest in empty space and slowest in solids.

How to find distance from motion graph velocity - time?

Answers

Answer:

by finding the slope of tangent (y2 - y1)/(x2 - x1)

A mixture of methanol and water was distilled using both simple distillation and fractional distillation. Which statement is NOT true

Answers

With regard to distilling the mixture of methanol and water using simple

distillation and fractional distillation, a statement that can be made that is

not true is that; Methanol and water form an azeotrope.

Reasons:

Azeotrope are liquid mixtures that have the property of a constant boiling

point due to the contents of the vapor are the same as the mixture.

Water when mixed with methanol form network structures. However,

methanol does not form a binary azeotrope with water.

Therefore, a statement that is not true is that methanol and water form an

azeotrope a mixture that has a constant boiling temperature.

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22. Which of the following molecules or ions contain polar bonds?
(a) O3
(b) S8
(c) 02 2-
(d) NO3
(e) CO2
(f) H2S
(g) BH4-

Answers

Answer:

D NO3 Nitrate is a nitrogen oxoanion formed by loss of a proton from nitric acid.

Nail polish remover is something that girls just can't do without. Which of the following has been used as the active ingredient in nail polish remover?
limonene
acetone
methanol
ethanol

Answers

Answer:

Acetone has been used as the active ingredient in nail polish remover.

Oxidation unit test
Please help ASAP.

Which phrase best defines a redox reaction? (1 point)
O a reaction in which oxygen combines with different atoms
O a reaction in which electrons are transferred between different atoms
O a reaction in which electrons are released from the system
O a reaction in which the number of oxygen atoms is reduced

Answers

Answer:

a reaction in which electrons are transferred between different atoms

Explanation:

I took the test and got it right :)

c. a reaction in which electrons are released from the system

Oxidation:

Oxidation is a process which involves the addition of oxygen or any electronegative element or the removal of hydrogen or any electropositive element.  In terms of electrons, oxidation is defined as the process in which an atom or ion loses one or more electrons.Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.

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BaCO3 Draw the Lewis dot structure for BaCO3. Include all nonbonding electrons. Show the formal charges of all atoms. To change the symbol of an atom, double-click on the atom and enter the letter of the new atom

Answers

To draw the Lewis dot structure on the [tex]B_aCO_3[/tex] molecular it is necessary to show the electron sharing between the [tex]CO_3[/tex] molecules, and then show the ionic bond between [tex]B_a[/tex] and [tex]CO_3[/tex].

You can see how this is done in the attached image.

We can arrive at this answer because:

The Lewis dot structure is made to show the sharing or transmission of electrons between atoms.In the [tex]B_aCO_3[/tex] molecule, we have both sharing and transmission of electrons, which occurs for atoms to search for stability in their valence layers.The compound [tex]CO_3[/tex] has covalent bonds, where the electrons share the electrons so that each one is electronically stable.However, the [tex]B_a[/tex] atom needs to transmit two electrons to another molecule to achieve stability, so when it forms a bond with [tex]CO_3[/tex], it transmits two electrons to that compound.This causes [tex]CO_3[/tex] to be negatively charged, while [tex]B_a[/tex] is positively charged.

Therefore, we can say that [tex]B_a[/tex] forms an ionic bond with [tex]CO_3[/tex].

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1. Which member of each pair is more stable? a. 2-Methyl-1-butene or 3-Methyl-1-butene b. 2-Methyl-1-butene or 2-Methyl-2-butene c. 2.3-dimethyl-1-butene or 2.3-dimethyl-2-butene​

Answers

Answer:

c. 2-dimethyl-2-butene or 3-dimethyl-1-butene

Magnesium has a density of 1.74 g/cm3. What is the volume of 58.6 g of Mg?

Answers

Answer:

1 kg = 1000 g

58.6=58,600g

Explanation:

What element is being oxidized in the following redox reaction?

Cr(OH)4-(aq) + ClO-(aq) → CrO42-(aq) + Cl-(aq)

Answers

Answer:

Cr

Explanation:

Cr goes from +3 to +6 and when it increases it means is being oxidized.

The element being oxidized in the redox reaction is Cr. Oxidation state helps to determine the amount of oxidation which an atom undergoes. An increase in oxidation state or number signifies oxidation has taken place.

A decrease in oxidation state depicts reduction has taken place. In this

scenario, the element Cr has a change in oxidation state from +3 to +6 which

signifies oxidation took place in the atoms of the element. This is why Cr will

be the right option.

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Which of the following does not change the rate of collisions between particles in a reaction?

A. Addition of catalyst
B. increase in surface area
C. increase in temperature
D. decrease in the reaction volume​

Answers

Answer: C

Explanation: trust me bro

Increase in temperature does not change the rate of collisions between particles in a reaction.

What is Collision?

The collision hypothesis offers suggestions for how to alter the rate of a reaction as well as an explanation for why certain reactions occur at various rates.

According to the collision theory, for a chemical reaction to take place, the reacting particles must come into contact with one another. The frequency of collisions affects the reaction's rate. According to the idea, responding particles frequently encounter without reacting.

Any analysis of an ordinary reaction mechanism must start with this rule. It explains why there are so few termolecular reactions. According to the kinetic theory of gases, there will only be one instance in which three molecules collide at once out of every 1000 binary collisions.

Therefore,  Increase in temperature does not change the rate of collisions between particles in a reaction.

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GIVING BRAINLY AND 20 POINTS
A sound wave in air has the wavelength of 1.36 m. Calculate its frequency? Assume the speed is 340 m/s.

Answers

Explanation:

frequency= velocity/ wavelength

= 340/1.36

=250

Which of the following is true about the actinide series?

Answers

Answer:

All of the elements are radioactive and contain the transuranium elements.

Explanation:

N/A

One night a student notices that one-quarter of the moon is visible. What is the likely explanation for this view?

Answers

If a student notices that  one-quarter of the moon is visible, a lunar eclipse has taken place.

Eclipse is said to occur when one of the heavenly bodies casts a shadow on another heavenly body causing it to be partly visible or completely invisible. When the earth comes between the sun and the moon, a lunar eclipse is said to occur.

When a lunar eclipse occurs, the moon may be partly visible or completely invisible. Therefore, if a student notices that  one-quarter of the moon is visible, a lunar eclipse has taken place.

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what is the common name of hydrated calcium sulphate?​

Answers

Answer:

Gypsum

Explanation:

Calcium sulphate, is a naturally occurring calcium salt. It is commonly known in its dihydrate form, a white or colourless powder called gypsum.

Which sentence best describes what happens during a change of state from
a solid to a liquid?
A. The temperature stays the same and the particle speed increases.
B. The temperature stays the same and the particle speed stays
constant
C. The temperature increases and the particle speed stays constant.
D. The temperature decreases and the particle speed decreases.
SUBMIT

Answers

Answer:

B

Explanation:

as temperature rises, the particles gain kinetic energy (they will move faster) so if temperatures stays constant, so will the movement or vibration of the particles

What is your opinion of Latino immigrants in your country?

Answers

Answer:

I believe they deserve to be here.

Explanation:

How do you convert a temperature from Celsius to kelvin?

Answers

Answer:

Kelvin = Celsius + 273.15

Explanation:

Instead of 273.15 you can use just 273 as well

When two volumes of hydrogen gas react with one volume of oxygen gas, two
volumes of gaseous water are formed. Modify the diagram you made for #2 to
represent molecules of hydrogen, oxygen and water in this reaction

Answers

Answer waterEX: 2H2O + O2 ⟶ 2H2O The statement 'two volumes of hydrogen reacts with one volume of oxygen to give two volumes of water'.

Fill in the left side of this equilibrium constant equation for the reaction of benzoic acid with water

Answers

Answer:

C6H5CO2H (aq) + H2O (l) _C6H5CO2- + H3O

Based on the diagram, describe the atomic structure of phosphorus. Be sure to include in your answer how many electron levels, protons, neutrons, valence electrons, and electrons are present in a neutral phosphorus atom.

Answers

it’s has 5 valance electrons, 15 protons, 17 neutrons, 15 electrons, and 3 electron shells

Calculate the second ionization energy of the metal M (?Hion2� in kJ/mol) using the following data:


Lattice enthalpy of MO(s), ?Hl� = -2383 kJ/mol

Bond dissociation enthalpy of O2(g) = +498 kJ/mol

First electron affinity of O = -141 kJ/mol

Second electron affinity of O = +744 kJ/mol

Enthalpy of sublimation of M = + 130 kJ/mol

First ionization energy of M = + 267 kJ/mol

Standard enthalpy of formation of MO(s), ?Hf� = -307 kJ/mol

Answers

From the information provided in the question, the second ionization energy of the metal is  578 kJ/mol.

From the question, we have the following information;

Lattice enthalpy of MO(s) = -2383 kJ/mol

Bond dissociation enthalpy of O2(g) = +498 kJ/mol

First electron affinity of O = -141 kJ/mol

Second electron affinity of O = +744 kJ/mol

First ionization energy of M = + 267 kJ/mol

Heat of sublimation of M = + 130 kJ/mol

Standard enthalpy of formation of MO(s) = -307 kJ/mol

Using Hess law of constant heat summation;

ΔHf = ΔHs + BE + ∑IE + ∑EA + U

ΔHs  = Heat of sublimation of metal

ΔHf = Heat of formation MO

BE = Bond energy of O2

∑EA  = sum of electron affinities of Oxygen

∑IE  = Sum of the ionization energies of M

U = Lattice energy of MO

Let the second ionization energy be x

Substituting values;

(-307) = 130 + 498 + (267 + x) + 603 + (-2383)

(-307) = -885 + x

-x =   -885 + 307

-x = -578

x = 578 kJ/mol

The second ionization energy of the metal is  578 kJ/mol.

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How many mL of 0.150 M HF solution are required to produce 0.0370 moles of HF

Answers

Answer:

247 ml

Explanation:

How many mL of 0.150 M HF solution are required to produce 0.0370 moles of HF 0.150 moles/ liter = 0.150/1000 moles/ml =0.000150 moles/ml

0.000150 x ? = 0.0370 moles HF

? = 0.0370/0.000150 = 247 ml

check

247 ml = 247/1000 L = 0.247

(0.247) x (0.150) =0.370 check

HELP ME OUT PLEASE!!

Barium sulfate, BaSO4 is a white crystalline solid that is insoluble in water. It is used by doctors to diagnose problems with the digestive system,

Barium hydroxide, Ba(OH)2 is also a white crystalline solid and is used in wastewater treatment.

How many more oxygen atoms are represented in the formula for barium sulfate than in the formula for barium hydroxide?

A) 2

B) 4

C) 1

D) 8​​

Answers

Answer: 2

Explanation:

Ba(OH)2 contains two oxygen atoms

BaSO4 contains four oxygen atoms.

This means that barium sulfate contains two more oxygen atoms than barium hydroxide in its formula.

Hope this helps!! :)

According to formula BaSO₄, Barium sulfate contains 2 more oxygen atom.

The correct option is (A) 2

Barium sulfate's distinguishing feature

Ba(OH)₂ has two oxygen atoms in it.

Four oxygen atoms may be found in BaSO₄.

This indicates that the formula of barium sulfate has two extra oxygen atoms than the formula of barium hydroxide.

Barium sulfate, often known as BaSO4, is a transparent white pigment that has a long history. It is produced by combining sulfuric acid with barium hydroxide and other sources of barium.

Chemically speaking, barium hydroxide has the formula Ba(OH)2. The monohydrate of barium, sometimes referred to as baryta or baryta-water, is one of the element's main compounds. The typical commercial form of monohydrate is this white granular substance.

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The Law of Conservation of Energy states that Energy can neither be ____________ nor _____________ but only change from one __________ to another.

Answers

Answer:

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed but only changed from one form of energy to another.

The law of conservation of energy states that energy can neither be created nor destroyed but changes from one state to  another.

What is law  of conservation of energy?

The law of conservation of energy states that energy can neither be created nor destroyed it can only be converted from one form of energy to another.According to this, the total energy of the system remains constant.

This statement is also a statement of first law of thermodynamics which is based on energy.Conservation of energy is distinct from conservation of mass as mass and energy are directly  proportional which is given the equation, E=mc².

Because of law of conservation of energy the perpetual motion of machine  cannot  exist. This means that  no system without an external source of energy  can supply unlimited amount of energy to its surroundings.

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Find the mass of 1.220 moles of PH5.

Answers

Answer:

43.93642

Explanation:

Phosphorus P 30.973762 1 86.0061

Hydrogen H 1.00794 5 13.9939

I don't know physics, but I hope this helps :)

(I'm a seventh grader so don't judge if this is wrong please)

A 5.35 M sugar solution is diluted from 240.0 mL to 862.5 mL. What is the concentration of the dilute solution

Answers

Answer:

1.345.0

Explanation:

Hope this helpssss

answer this please........

Answers

Your answer will be:
D. River Spey is 2* warmer that River Canon

Have a great day or night!

(please mark brainliest)

The concept that the total amount of energy remains the same is called.

Answers

Answer:The law of conservation of energy

Explanation:

states that the total energy is constant in any process. Energy may change in form or be transferred from one system to another, but the total remains the same.

Calculate the mass (in grams) of chlorine (Cl2) gas sample which occupies a 2.50 L container at a pressure of 1.22 atm and temperature of 27.8°C?

Answers

Answer:Nothing

Explanation:

The answer is nothing the tempatature isnt matched with the degrees this is false

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