Provide the coefficients needed to balance the redox reaction given. Choose... Fe(s) + Choose... Cl2(g)→ Choose... Fe3+(aq) + Choose... Cl-(aq)

Answer:

The volume is 4.13793 L

Explanation:

Density is a quantity that expresses the relationship between the mass and the volume of a body, so it is defined as the quotient between the mass and the volume of a body:

\(density=\frac{mass}{volume}\)

Density is a characteristic property of every body or substance.

The most commonly used units of density are \(\frac{kg}{m^{3} }\) or \(\frac{g}{cm^{3} }\) for solids, and \(\frac{kg}{L}\) or \(\frac{g}{mL}\) for liquids and gases.

In this case, you know:

Replacing:

\(0.87\frac{g}{mL} =\frac{3,600 g}{volume}\)

Solving:

\(volume =\frac{3,600 g}{0.87\frac{g}{mL}}\)

volume= 4,137.93 mL

Being 1,000 mL=1 L, then volume= 4,137.93 mL= 4.13793 L

The volume is 4.13793 L

Answer:

The particles in the neutral paper can shift, causing the paper to become polarized and attracted to the rod.

Explanation:

The neutral paper has an even distribution of its electrons throughout the paper. If a charged rod is brought near the neutral paper, this can cause the electrons in the paper to shift. If the rod is negative, the electrons will be repelled from the rod and cause the molecules in the paper to have a slight positive charge on the part of the paper closest to the rod. If the rod is positive, the electrons will be attracted to the rod and cause a slight negative charge on the side of the paper closest to the rod.

Answer:

0.8261 M.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

HC2H3O2 + NaOH —> NaC2H3O2 + H2O

From the balanced equation above, we obtained the following:

Mole ratio of the acid, HC2H3O2 (nA) = 1

Mole ratio of the base, NaOH (nB) = 1

Data obtained from the question include the following:

Volume of acid, HC2H3O2 (Va) = 10 mL

Molarity of acid, HC2H3O2 (Ma) =..?

Volume of base, NaOH (Vb) = 16.95 mL Molarity of base, NaOH (Mb) = 0.4874 M

Finally, we shall determine the molarity of the acid solution, as follow:

MaVa/MbVb = nA/nB

Ma x 10 / 0.4874 x 16.95 = 1

Cross multiply

Ma x 10 = 0.4874 x 16.95

Divide both side by 10

Ma = (0.4874 x 16.95) /10

Ma = 0.8261 M.

Therefore, the molarity of the vinegar solution (HC2H3O2) is 0.8261 M.

The balanced equation obeys the law of conservation of mass because the number of atoms of each element (carbon, hydrogen, and oxygen) is the same on both sides of the equation.

To balance the equation CH4 + O2 → CO2 + H2O, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

Starting with carbon (C), there is one carbon atom on the left side (CH4) and one carbon atom on the right side (CO2). Carbon is already balanced.

Moving on to hydrogen (H), there are four hydrogen atoms on the left side (CH4) and two hydrogen atoms on the right side (H2O). To balance hydrogen, we can add a coefficient of 2 in front of H2O:

CH4 + O2 → CO2 + 2H2O

Now, let's consider oxygen (O). There are two oxygen atoms on the left side (O2) and two oxygen atoms on the right side (CO2 + 2H2O). Oxygen is already balanced.

The balanced equation is:

CH4 + O2 → CO2 + 2H2O

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The grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g. None of the options provided match the calculated value of 466.64 g.

To determine the grams of magnesium hydroxide (Mg(OH)2) needed to yield 8.00 moles of magnesium chlorate (Mg(ClO3)2), we need to consider the balanced chemical equation for the reaction between magnesium hydroxide and chlorine.

The balanced equation is as follows:

2 Mg(OH)2 + 6 Cl2 → 2 Mg(ClO3)2 + 2 H2O

From the balanced equation, we can see that 2 moles of Mg(OH)2 react with 6 moles of Cl2 to produce 2 moles of Mg(ClO3)2.

Therefore, the stoichiometric ratio is 2 moles of Mg(OH)2 : 2 moles of Mg(ClO3)2.

To calculate the grams of Mg(OH)2 needed, we can use the stoichiometric ratio and the given moles of Mg(ClO3)2.

Given:

Moles of Mg(ClO3)2 = 8.00 moles

Using the stoichiometric ratio, we have:

8.00 moles Mg(ClO3)2 × (2 moles Mg(OH)2 / 2 moles Mg(ClO3)2) = 8.00 moles Mg(OH)2

To convert moles to grams, we need to multiply by the molar mass of Mg(OH)2.

The molar mass of Mg(OH)2 = (24.31 g/mol) + (2 * 16.00 g/mol) = 58.33 g/mol

Grams of Mg(OH)2 = 8.00 moles Mg(OH)2 × 58.33 g/mol = 466.64 g

Therefore, the grams of magnesium hydroxide needed to yield 8.00 moles of magnesium chlorate is approximately 466.64 g.

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Answer:

When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide . These two processes are represented by the two chemical equations shown at right.

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Three moles of oxygen atoms, or 48.00 g, are definitely present in one mole of potassium carbonate, or almost half the salt's mass.

Whenever a molecule has multiple identical atoms, the number of them is indicated just at bottom right of a relevant symbol, as in the following example: Carbonate of Calcium: CaCO3 is made up of one calcium atom, one carbon atom, and three oxygen atoms.

For instance, in K2O, the oxide creates the cubic tight packing while the potassium fills all 8 tetragonal holes. Eight potassium cations surround the oxygen anions in a cubic arrangement, while four oxygen atoms surround the potassium cations in a tetrahedral arrangement ((4,8)-coordination).

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0.168M

The formula for calculating the concentration of the solution is expressed as:

Determine the moles of iron(II) chloride

Given that volume is 0.45L, hence the concentration is expressed as:

Hence the concentration of the solution is 0.168M

Answer:

I believe the answer is electrons.

Explanation:

Protons can't move and neurons don't have a charge so it would be electrons.

Cuso4 + NaoH -》cu(oH)2 +Na2So4

Cuso4 + 2NaoH -》cu(oH)2 +Na2So4

Explanation:

this is balanced equation

Answer: The molecule \(CH_{3}-CH_{3}\) is expected to have a dipole moment of zero.

Explanation:

The product of magnitude of the charge calculated in electrostatic units is called dipole moment.

Formula for dipole moment is as follows.

Dipole moment = Charge (in esu) \(\times\) distance (in cm)

Non-polar molecules have zero dipole moment.

For example, \(CH_{3}-CH_{3}\) is a non-polar molecule so its dipole moment is zero.

\(H_{2}C=O\) is a polar molecule so it will have dipole moment.

\(CH_{2}Cl_{2}\) is a polar molecule so it will have dipole moment.

\(NH_{3}\) has nitrogen atom as more electronegative than hydrogen atom. So, net dipole moment will be in the direction of nitrogen atom.

Thus, we can conclude that the molecule \(CH_{3}-CH_{3}\) is expected to have a dipole moment of zero.

The amount of heat energy (in KJ) needed to convert 3 moles of water vapor into hydrogen gas and oxygen gas is 1450.8 KJ

We'll begin by writing the balanced equation. This is illustrated below:

2H₂ + O₂ --> 2H₂O ΔH = 483.6 KJ

From the balanced equation above,

2 moles of water (H₂O) required 483.6 KJ to produce hydrogen gas and oxygen gas

The heat energy needed to convert 3 moles of water can be obtained as illustrated below:

From the balanced equation above,

2 moles of water (H₂O) required 483.6 KJ to produce hydrogen gas and oxygen gas

Therefore,

3 moles of water (H₂O) will require = 3 × 483.6 = 1450.8 KJ to produce hydrogen gas and oxygen gas

Thus, we can conclude that the energy needed to convert 3 moles of water is 1450.8 KJ

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Nuclear Fission

Nuclear fission, subdivision of a heavy atomic nucleus, such as that of uranium or plutonium, into two fragments of roughly equal mass. The process is accompanied by the release of a large amount of energy. In nuclear fission the nucleus of an atom breaks up into two lighter nuclei.

Nuclear fission is a process where the nucleus of an atom is split into two or more smaller nuclei, known as fission products. The fission of heavy elements is an exothermic reaction, and huge amounts of energy are released in the process.

Let's see that in the options, carbon monoxide (CO) and lead (II) sulfide (PbS) are toxic compounds to the human body, so we have to discard these options.

Now, we have oxygen molecule (O2) and sodium chloride (NaCl), and these compounds are essential to the human body. But, NaCl is an ionic compound because there are two ions (cation and anion) combined chemically. On the other hand, we have that oxygen molecule which is two oxygens atoms that are bonded, it represents a covalent bond because they are sharing their electrons, so the answer is oxygen molecule.

Answer:

how fast the solute dissolves in the solvent

Explanation:

The rate of dissolution refers to fast solute molecules dissolve in solvent to form solution. It refers to the rate at which solute in liquid, solid or gas dissolve in solvent to form solution.

Answer:

the answer is, "how fast the solute dissolves in the solvent".

Explanation:

i watched the video and answered it and it was right.

Answer:

B. Patterns can help explain observations.

Explanation:

Hope this helps

Answer:

B. Patterns can help explain observations.

Explanation:

a p e x 2021 :) Have a nice day everyone!

Answer:

The answer is A, Neutron adds only mass

Answer:

Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There's a catch, though: absolute zero is impossible to reach.

Explanation:

Yes, the AgCl will precipitate out from this solution.

First of all we know that[Ag^+] = [Cl^-] = [AgCl]

As such we have that

[AgCl] = √Ksp

= √1.6 x 10^-10

= 1.26 8 10^-5 M

Number of moles of the AgCl = 1.26 8 10^-5 M * 13.6/1000

= 1.6 * 10^-7 moles

Then;

Number of moles of NaCl = 13.6/1000 * 0.0246

= 3.3 * 10^-4 moles

Number of moles of AgNO3 = 0.00482 g /170 g/mol

= 2.8 * 10^-5 moles

The reaction equation is;

AgNO3 + NaCl --->AgCl + NaNO3

The reaction is 1:1 thus AgNO3 is the limiting reactant and the amount of the AgCl formed is  2.8 * 10^-5 moles.

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Answer:118 °C

Explanation:

Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

Answer:

so so

Explanation:

this your question?? <_>

Answer:

0.17 moles

Explanation:

In the elements of the periodic table, the atomic mass = molar mass. Ex: Atomic mass of Carbon is 12.01 amu which means molar mass of Carbon is also 12.01g/mol.

In order to find the # of moles in a 12 g sample of NiC-12, we will need to multiply the number of each atom by its molar mass and then add the masses of both Nickel and C-12 found in the periodic table:

Since there's just one atom of both Carbon and Nickel, we just add up the masses to find the molar mass of the whole compound of NiC-12.

There's 12g of NiC-12, which is less than the molar mass of NiC-12, so the number of moles should be less than 1. In order to find the # of moles in NiC-12, we need to do some dimensional analysis:

P.S. C-12 or C12 just means that the Carbon atom has an atomic mass of 12amu and a molar mass of 12g/mol, or just regular carbon.

Answer

Given equation:

The oxidation number of the elements are assigned below:

The oxidation number of N in NH₄⁺ is -3

The oxidation number of N in NO₂⁻ is +3

The oxidation number of N in N₂ is 0

The oxidation number of H is + 1

The oxidation number of O is -2

Oxidizing and reducing agents.

NH₄NO₂ is the oxidizing agent and is also the reducing agent.

Hence, the reaction is a comproportionation or synproportionation - a chemical reaction where two reactants containing the same element but with different oxidation numbers, form a compound having an intermediate oxidation number.

Change in oxidation number.

The oxidation number of N changes from -3 in NH₄⁺ to 0 in N₂

Also the oxidation number of N changes from +3 in NO₂⁻ to 0 in N₂

Based on how chemical equations are written, the given chemical reaction: Four atoms of aluminum metal react quickly with 3 molecules of oxygen in the air to produce 2 molecules of aluminum oxide can be written as follows:

Word equation: Aluminum metal + oxygen gas ---> Aluminum oxide

Reactants: Aluminum metal and oxygen gas

Products: Aluminum oxide

Known states of matter: solid + gas ---> solid

Equation: 4 Al (s) + 3 O₂ (g) ---> 2 Al₂O₃ (s)

A chemical reaction is a type of change that results in changes in the chemical properties of substances.

Chemical reactions involve the rearrangement of atoms of substances and result in the formation of new substances.

Chemical reactions can be represented by a chemical equation.

Chemical equations use symbols to represent the reactants and the products of a reaction.

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Answer: Refract

Explanation:

Answer:

4.8*10^6

Explanation:

Simply count the number of decimal places moved to the left until you get 1 digit IN front of the decimal