Zinc reacts with iron (iii) chloride yielding zinc chloride plus iron

Answers

Answer 1

Answer:

I don't see a specific question, so I'll make a few comments and hope that answers the reason for the post.

Explanation:

Zinc(Zn) does react with iron chloride, since zinc is a more reactive metal than the iron.

When Zn is introduced to an iron (III) chloride solution, the Zn disoplaces the Fe atom in a displacement reaction.

The chemical equation of the reaction:

Zn + Fe(III)Cl3 → ZnCl3 + Fe

Energy is often realeased in this type of reaction, since the resulting chemical products have a lower energy that the reactants.

There are several metals more reactive than iron.  One of the more interesting examples of a highly exothermic reaction with iron chloride (rust) is the reaction of aluminum with iron chloride.  `This is highly exothermic and is labelled a thermite reaction.  It provides a spectacular flame that is not enough to weld railroad tracks together.


Related Questions

On the moon, there is no air resistance. What forces (F) are acting on the hammer and
feather as they fall? How do you know?

Answers

Answer:

Gravitional Force

Explanation:

Every planet has a gravitational pull which attracts all objects; the moon is no exception. It says forces in the question but I know for sure gravitational force is apart of it.

How many moles of each atom are there in 5 moles of cu3(po4)2

Answers

The number of moles of each atom present in 5 moles of Cu₃(PO₄)₂ are:

15 moles of Cu10 moles of P40 moles of O

Description of Cu₃(PO₄)₂1 mole of Cu₃(PO₄)₂ contains 3 moles of Cu2 moles of P(2×4) = 8 moles of O

How to determine the mole of each atom

The moles of atom present in 5 moles of Cu₃(PO₄)₂ can be obtained as follow

For Cu

1 mole of Cu₃(PO₄)₂ contains 3 moles of Cu.

Therefore,

5 moles of Cu₃(PO₄)₂ will contain = 5 × 3 = 15 moles of Cu

For P

1 mole of Cu₃(PO₄)₂ contains 2 moles of P.

Therefore,

5 moles of Cu₃(PO₄)₂ will contain = 5 × 2 = 10 moles of P

For O

1 mole of Cu₃(PO₄)₂ contains 8 moles of O.

Therefore,

5 moles of Cu₃(PO₄)₂ will contain = 5 × 8 = 40 moles of O

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The number of moles of copper, phosphorous and oxygen present in the 5 moles of Cu₃(PO₄)₂ are 15, 20 and 40 respectively.

What is stoichiometry?

Stoichiometry of any chemical equation gives idea about the amount of species present before and after the reaction.

Dissociation reaction of Cu₃(PO₄)₂ is shown as below:
Cu₃(PO₄)₂ → 3Cu²⁺ + 2PO₄³⁻

From the stoichiometry of the equation, it is clear that:

1 mole of Cu₃(PO₄)₂ produces 3 moles of copper atom, 2 moles of phosphorous atoms an 8 moles of oxygen atom.

5 moles of Cu₃(PO₄)₂ = produces 3×5=15 moles of Cu

5 moles of Cu₃(PO₄)₂ = produces 2×5=10 moles of P

5 moles of Cu₃(PO₄)₂ = produces 8×5=40 moles of O

Hence required moles of copper, phosphorous and oxygen are 15, 20 and 40 respectively.

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What type of substance is water?

Question 17 options:

molecule


mixture


element


compound

Answers

The type of substance of water is a compound.

How long does sucrose take to decompose? Why?

I need help!

Answers

Answer:

The loss of crystalline structure of sucrose was reported at various temperatures, but decomposition, after >50 h of holding at 120 °C in a sealed pan.

Explanation:

As this condition is above the melting temperature of fructose (a possible first decomposition product), and there were water and impurities.

The part of an atom that is responsible for the bonding of atoms is

Answers

Answer:

the answer is electrons

Explanation:

electrons are responsible for the chemical bonding.

Voluntary muscles
a.are muscles that work automatically.
b.are only in your arms and legs.
c.are muscles that you can control.
d.are muscles that push.

Answers

Answer: C.

Explanation:

Voluntary muscle are muscles that you can control.

Which diatomic molecule or ion has the shortest bond length?

Answers

Explanation:

The shortest bond distance is at N2 due to its high bond order of 3. From N2 to F2 the bond distance increases despite the fact that atomic radius decreases.

H₂ is the diatomic molecule or ion that has the shortest bond length.

What are diatomic molecules?

Diatomic atoms are those atoms which are composed of two atoms that are joined by a chemical bond.

H₂ is the simplest diatomic molecule is this.

It is diamagnetic and has only two molecular orbitals (g and u), two electrons, and a bond order of one.

It has a 74 pm bond length.

Thus, H₂ is the diatomic molecule or ion that has the shortest bond length.

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is the soda ginger ale(canada dry) a weak acid or a strong acid? why

Answers

Answer:

Ginger ale is a strong acid

Explanation:

This is because of the high amounts of carbonic acid that it contains, putting it below the 4.6 Ph threshold.

What causes “gaps in the rock record” and how is that described?

Answers

Answer:

An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. Unconformities occur when either erosion wears away rocks, or rock deposits never form. Therefore, a time gap exists between when the rocks below the unconformity formed and when those above it formed.

Explanation:

At what number carbon does the phosphate group connect to the sugar?.

Answers

5th

The phosphate group attached to the 5' carbon of the sugar on one nucleotide forms an ester bond with the free hydroxyl on the 3' carbon of the next nucleotide.

Calculate the molarity of each of the following solutions. Use the periodic table if necessary. A salt solution with a volume of 250 mL that contains 0. 70 mol NaCl. M.

Answers

The molarity of the NaCl in the 250 ml slat solution is 2.8M.

What is molarity?

The molarity of a solution is defined as the concentration of a solute per unit volume of the solution.

Given, the volume of the solution is 250 ml converted into l 0.25

The number of moles of NaCl is 0.70.

By the formula  of molarity

[tex]M = \dfrac{n}{V}\\\\\\M = \dfrac{0.70}{0.25} = 2.8 M[/tex]

Thus, the molarity is 2.8 M.

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Which statement best describes the organization of the Periodic Table of the Elements?
A. Elements within a period have the same number of electrons.
B. Gases easily form compounds with other elements.
C. All gases are grouped together.
D. Elements within a group have similar properties

Answers

D. Elements within a group have similar properties.

The rusting of iron is represented by the equation 4Fe + 3O2 --> 2Fe2O3. If you have a 3.5-mol sample of iron, how many grams of O2 are needed to rust the iron completely?

34.9 g
84.0 g
16.5 g
48.6 g

Answers

Answer:

84.0 g

Balanced equation: 4Fe + 3O2 --> 2Fe2O3

3.5-mol sample of iron

Find moles of oxygen:

4Fe : 3O24 : 3

(3.5/4)*3 = 2.625 moles

Find mass of O2

mass = moles * Mrmass = 2.625 * 32mass = 84 g

A sample of nitrogen occupies 10.0 liters at 25oC , what would be the new volume at 20oC?

Answers

V1=10LT1=25°CT2=20°C

Apply Charles law

[tex]\\ \bf\bull\rightarrowtail V1T2=V_2T1[/tex]

[tex]\\ \bf\bull\rightarrowtail 10(20)=25V_2[/tex]

[tex]\\ \bf\bull\rightarrowtail 200=25V_2[/tex]

[tex]\\ \bf\bull\rightarrowtail V_2=8L[/tex]

Answer:

hope it's helpful to you

hello people ~
Which one of the following is a thermosetting plastic?

A. PET

B. Acrylic

C. Melamine

D. Polylactide​

Answers

Answer:

Answer: C

Melamine resin or melamine formaldehyde (also shortened to melamine) is a resin with melamine rings terminated with multiple hydroxyl groups derived from formaldehyde. This thermosetting plastic material is made from melamine and formaldehyde.

Melamine formaldehyde is a thermosetting plastic (or thermoset) that strengthens as it is heated during its preparation.

Typical household bleach has a ph of 13. what is the h3o concentration in household bleach? round to the nearest hundredth. × 10n m n =

Answers

Typical household bleach has a value of pH of 13, so the concentration of H₃O⁺ in household bleach is 1 × 10⁻¹³ M.

What is pH?

pH of any solution is defined as the negative logarithm of the concentration of H⁺ ion presnt in the solution.

pH = -log[H⁺]

From this equation we can calculate the concentration of H⁺ ion by removing logarithm as:

[H⁺] = [tex]10^{-pH}[/tex]

Given value of pH = 13

[H⁺] = 10⁻¹³ M

Hence, required concentration is 1 × 10⁻¹³ M.

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Answer:

1st blank is 1.00

2nd blank is -13

Explanation:

Use Lewis symbols to predict the formula for the
compound that forms between magnesium and
nitrogen

Answers

The lewis structure of Magnesium nitride places eight electrons around N. 3 of these electrons are provided by Mg to get a stable conformation.

What is the Lewis structure?

The Lewis structure is a representation of electron pairs in bonds between the atoms that compose the molecule. It can also show the solitary electron pairs that remain for each atom.

Electrons

When adding the valence electrons of each atom, we get the total number of electrons in the molecule.

The valence value is the number of electrons placed in the last energetic level of the atom.

The compound that forms between magnesium and nitrogen is magnesium nitride, Mg₃N₂. This is a simple salt with an ionic bond between a metal and a non-metal element.

What are the Metalic atoms?

They are elements that express a tendency to lose valence electrons to get a stable electronic configuration. When they lose electrons, they remain positively charged. These are cations with positive charges and lose the valence electrons of their last level.

Mg has 2 electrons in its last level, so to get a complete stable configuration (2e-), it needs to lose 2 electrons.

Mg has two positive charges Mg ²⁺

What are the non-metalic atoms?

They are elements that gain electrons to complete their last level. These are the anions. When they get electrons, they remain negatively charged.

Because Nitrogen has 5 electrons in its last level, it needs to add 3 electrons. In this way, it gets to the complete stable configuration (8e-).

N has three negative charges N³⁻

So, to complete the Lewis structure, we need to add Mg ²⁺ and N³⁻.

We know that

Mg loses two electrons,N needs to add three electrons.

According to this, N needs more than one Mg to complete its last level.

So, in our calculations, we need to have three Mg and two N.

Two N need six electrons (-3e- x 2 = -6e-) to complete their last levelThree Mg can provide six electrons (+2e- x 3 = +6e-)

You will find the final Lewis structure in the attached files.

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Which of these is a ball and stick model?

Answers

the answer is C i did that before

which of these elements has the smallest atomic radius

Answers

This needs more details.
Helium has the smallest atomic radius

A 0.205 g sample of caco3 (mr = 100.1 g/mol) is added to a flask along with 7.50 ml of 2.00 m hcl. caco3(aq) + 2hcl(aq) → cacl2(aq) + h2o(l) + co2(g) enough water is then added to make a 125.0 ml solution. a 10.00 ml aliquot of this solution is taken and titrated with 0.058 m naoh. naoh(aq) + hcl(aq) → h2o(l) + nacl(aq) how many ml of naoh are used?

Answers

Answer:

118MOLS

Explanation:

M1VI=M2V2

THE REST WORK OUT ( BA UNZA STUDENTS HE HE HE )

Hello people ~
One of the advantages of nylon over rayon is that nylon:

A. Is wrinkle free.

B. Has low elasticity

C. Is a natural fibre

D. Is a good conductor of electricity

Answers

Answer:

I think it is D.

Explanation:

Sry if I am wrong...

Answer:

wrinkle free

Explanation:

Nylon fabric is easy to wash so it's wrinkle free.Nylon is highly elastic and waterproof fabric.So it's highly used by mountaineers .

Which substance is known as the universal solvent because it dissolves more solutes than any other solvent?.

Answers

Answer:

Water(H20)

Explanation:

Water is called the universal solvent because more substances dissolve in water than in any other chemical. This has to do with the polarity of each water molecule. The hydrogen side of each water (H2O) molecule carries a slight positive electric charge, while the oxygen side carries a slight negative electric charge.

What is the term for the heat content of a system?

Enthalpy
Entropy
Energy
Joule

Answers

Answer:

Enthalpy

Explanation:

The term entropy is used to express the particle scattering of a system.The term joule is a unit of energy.

hello people ~
Give the ratio in which hydrogen and oxygen are present in water by volume.

(a) 1:2

(b) 1:1

(c) 2:1

(d) 1:8

Answers

Answer:

Explanation:

The volume of Hydrogen and Oxygen molecules are not the same but assuming that they are, the ratio in water which is H2O would be

(c) 2:1

Devise a two‑step synthesis of the alkene from the ketone using the reagents provided

Answers

We can convert ketones to alkenes by the use of;

1)B2H6 in THF

2) H2O2/NaOH

What is  a ketone?

A ketone is a compound of the sort RCO. The compound contains a carbon  - oxygen double bond. The ketone can be used in the synthesis of an alkene. The question is incomplete hence I can only give a general answer.

The reaction involves the following reagents;

1)B2H6 in THF

2) H2O2/NaOH

When these two reagents are applied any ketone can be converted to an alkene.

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The two-step synthesis of the alkene from the ketone using the reagents provided is

Step1: B₂H₆ in THF.

Step2: H₂O₂ / NaOH

What is alkene?

An alkene is a hydrocarbon compound containing double bonds between carbons.

The process of making alkenes from ketones or aldehyde is called the witting reaction or witting olefination.

Thus, the two-step synthesis of the alkene from the ketone using the reagents provided is

Step1: B₂H₆ in THF.

Step2: H₂O₂ / NaOH

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A chemist uses 0.25 l of 2.00 m h2so4 to completely neutralize a 2.00 l of solution of naoh. the balanced chemical equation of the reaction is given below. 2naoh h2so4 right arrow. na2so4 2h2o what is the concentration of naoh that is used?

Answers

The concentration of NaOH that is used to completely neutralize is 0.25 Liters.

How do we calculate concentration?

We will calculate the concentration in terms of molarity by using the below formula:

M₁V₁ = M₂V₂, where

M₁ = molarity of H₂SO₄ = 2m

V₁ = volume of H₂SO₄ = 0.25 L

M₂ = molarity of NaOH = ?

V₂ = volume of NaOH = 2 L

On putting all these values on the above equation, we get

M₂ = (2)(0.25) / (2) = 0.25 L

Hence required volume is 0.25 L.

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Solutions of monosodium phosphate and disodium phosphate are combined in equal volume to produce a buffer. Identify the combination that will produce the buffer with the highest buffer capacity

Answers

Answer: 0.1M NaH2PO4 & 0.1M Na2HPO4

Explanation:

An ice cube is placed on the counter, as seen below. Draw an arrow to show the direction of heat transfer to or from the ice/water. Explain your answer.

Answers

Answer:

The arrow would be facing upwards from the counter to the icecube.

Explanation:

Heat flows from the counter to the ice causing the molecules in the counter to move more slowly.

An ice cube is placed on the counter, The arrow would be facing upwards from the counter to the ice cube. This is the property of water.

what are the properties of water molecule ?

It is tasteless, odorless, or transparent, nucleus of the oxygen atom and the electrons strongly than the nuclei of the hydrogen atoms.

In water molecule oxygen is electro negative than hydrogen, results in the development of a partial negative charge on the oxygen and a partial positive charge on the hydrogen end.

Water have a strong cohesive property where the attraction of molecules with other molecules of the same kind is referred to as cohesion.

Surface tension of the water  is defined as  the tendency of  the surface to resist rupture when they are subjected to stress due to cohesive forces.

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what mass TiO2 needs to be dissolved in water to make 0.45 mL of a 0.700 M TiO2 solution

Answers

Volume=0.45mL=0.00045LMolarity=0.7M

No of moles:-

[tex]\\ \tt\Rrightarrow Molarity (Volume)[/tex]

[tex]\\ \tt\Rrightarrow 0.00045(0.7)[/tex]

[tex]\\ \tt\Rrightarrow 0.000315mol[/tex]

Molar mass of TiO_2=79.866g/mol

Mass:-

0.000315(79.866)=0.025157779g

What temperature scale is used in gas law calculations.

Answers

Answer: You used the Kelvin scale.

Explanation: this is because its multiplied by the temperature im not sure.

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