Name the Salt formed When Nitric acid + sodium hydroxide

Sodium Sulfate or
Sodium Chloride or
Sodium Nitrate

Answer:

scientific community's consensus on the human causes of global climate change

Explanation:

True.

When using the AND operator to combine simple conditions, only one of the simple conditions must be true for the compound condition to be true. For example, if we have two simple conditions, A and B, and we combine them using the AND operator, then the compound condition is true only if both A and B are true.

In other words, the AND operator has a "mandatory" nature - it requires that both simple conditions be satisfied for the compound condition to be true. This is in contrast to the OR operator, which allows for one or more of the simple conditions to be true for the compound condition to be true.

For example, if we have two simple conditions, A and B, and we combine them using the OR operator, then the compound condition is true if either A or B is true. This means that the OR operator has a "non-mandatory" nature - it allows for one or more of the simple conditions to be true for the compound condition to be true.

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The reaction between acids in acetic acid in vinegar reacts with bases of calcium carbonate to form calcium acetate salts

Calcium can form deposits on the surface of equipment in contact with water in the form of CaCO₃

vinegar which contains acetic acid can break the bonds between Calcium and Carbonate that form calcium acetate

CaCO₃ + 2CH₃COOH = Ca(CH₃COO)₂ + H₂CO₃

CaCO₃ + 2CH₃COOH = Ca(CH₃COO)₂ + H₂O + CO₂

The law of mass action is a fundamental principle in chemistry that relates the concentrations of reactants and products in a chemical reaction to the rate of that reaction.

It states that the rate of a chemical reaction is proportional to the product of the concentrations of the reactants, with each concentration raised to a power equal to its stoichiometric coefficient in the balanced chemical equation for the reaction.

For a chemical reaction of the form:

aA + bB ⇌ cC + dD

where A, B, C, and D are the chemical species involved in the reaction, the law of mass action can be expressed as follows:

rate = k [A]²a [B]²b

where k is the rate constant for the reaction, [A] and [B] are the concentrations of the reactants A and B, respectively, and a and b are their stoichiometric coefficients in the balanced chemical equation.

Assuming that both [A] and [B] are kept at constant concentrations, the equation reduces to:

rate = k [A]²a [B]²b = k [A]²a [B]_0²b

where [B]_0 is the initial concentration of B.

Now, let's define x as the concentration of A that has reacted (i.e., the concentration of A that has been consumed in the reaction). Since the reaction is stoichiometrically balanced, we know that the concentration of B that has reacted is b*x/a. Therefore, the concentration of A and B at any given time can be expressed as follows:

[A] = [A]_0 - x

[B] = [B]_0 - b*x/a

Substituting these expressions into the rate equation, we get:

rate = k ([A]_0 - x)²a ([B]_0 - b*x/a)²b

Expanding this expression using the binomial theorem and simplifying, we get:

rate = k [A]_0²a [B]_0²b (1 - ax/[A]_0)²(a-1) (1 - bx/[B]_0)²(b-1)

At low concentrations of x, we can approximate the terms in parentheses using their first-order Taylor series expansions:

(1 - a*x/[A]_0)²(a-1) ≈ 1 - (a-1)*x/[A]_0

(1 - b*x/[B]_0)²(b-1) ≈ 1 - (b-1)*x/[B]_0

Substituting these approximations into the rate equation, we get:

rate ≈ k [A]_0²a [B]_0²b (1 - ax/[A]_0) (1 - bx/[B]_0)

Expanding and simplifying, we get:

rate ≈ k [A]_0²a [B]_0²b - k [A]_0²a [B]_0²b (a/b)x + k [A]_0²a [B]_0²b (a/b)(a-1)/2 * x²2

This is an equation of the form:

rate = A - Bx + Cx²2

where A, B, and C are constants that depend on the reaction conditions. This equation describes a quadratic relationship between the rate of the reaction and the concentration of A that has reacted (i.e., the extent of the reaction).

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The answer is product.

The free energy of a thermodynamic system is referred to as the Gibbs free energy or Gibbs energy. The Gibbs free energy is a thermodynamic quantity that represents the thermodynamic system's ability to do reversible work.The formula for Gibbs energy is shown below:

                           ΔG = ΔH - TΔS

where:ΔG: the Gibbs free energy of the system

ΔH: the enthalpy of the systemT: the temperature of the system

ΔS: the entropy of the system

The Gibbs free energy can be calculated using the following formula:

ΔG° = - RT lnK

where:ΔG°: the Gibbs free energy at standard state

R: the gas constant

T: the temperature in kelvins

K: the equilibrium constant

The value of ΔG° determines the direction in which a chemical reaction will proceed. A negative ΔG° means that the reaction is spontaneous, while a positive ΔG° means that the reaction is non-spontaneous.

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Physical change does not alters the molecule or atoms that are present.

Physical changes are those changes that do not alter the identity of the molecules or atoms that are taking part in the chemical reaction. Or we can say that physical changes are changes in which no bonds are broken or formed. This means that the same types of compounds or elements that were present  at the beginning of the change are there at the end of the change as well. Because the ending materials are the same as the beginning materials, the properties (such as color, boiling point, etc.) will also be the same. Physical changes also  involve moving molecules around, but not changing them.

Whereas Chemical changes occur when bonds are broken and are formed between molecules or atoms. This means that one substance with a certain set of properties (such as melting point, color, taste, etc) is turned into a different substance which have different properties. Chemical changes are frequently harder to reverse than physical changes.

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Answer:

The answer is C) 0.0300 mol

Explanation:

First you need to get the total amount of moles is dissolved in the solution. This can be obtained doing the following:

Molarity = moles of solute / liters of solution

moles of solute = molarity x liters of solution

First, the volume has to be in liters, then :

100. ml x (1 L / 1000 mL) = 0.100 L

(We then substitute)

moles of solute = 0.100 mol/L x 0.1 L = 0.0100 mol of solute (In this case Na3PO4)

Having the moles of the solute, we now need to find how many moles of Na+ ions are there.

We need the conversion factor of 3 Na+ moles per 1 mole of Na3PO4

We then find the amount of moles doing as follows:

0.0100 mol Na3PO4 x (3 mol Na+ / 1 mol Na3PO4) = 0.0300 mol Na+.

The number of moles of \(Na^+\) are 0.0300 and further calculation can be defined as follows:

Given that:

Molarity of \(Na_3PO_4\) = 0.100 M

Volume of a solution = 100. mL

To find:

Moles of \(Na^+\) ions

Formula used to calculate the number of moles when molarity is given is:

\(\text{Molarity of solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (mL)}}\)

Put the values in the above formula:

\(0.100M=\frac{\text{Moles of }Na_3PO_4\times 1000}{100 mL}\\\\\text{Moles of }Na_3PO_4=\frac{0.100\times 100}{1000}\\\\\text{Moles of }Na_3PO_4=0.01 moles\)

Since, 1 mole of \(Na_3PO_4\) contains 3 moles of \(Na^+\) and 1 mole of  \(PO_4^{3-}\) ions.

Moles of  \(Na^+\) ions = \((3\times 0.0100)=0.0300mol\)

So, the required moles of \(Na^+\) ions are 0.0300 moles.

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If we add 25.6 g of an unknown molecular compound to the 0.250 kg of benzene, the molar mass of the unknown compound is 148.8 g/mol.

The Molality of the compound is given as :

ΔT = i Kf m

Where,

ΔT = freezing point depression = 3.54 °C

i =  Van't Hoff factor of the Benzene = 1

Kf =  constant of the freezing = 5.12 °C/m

m = molality = ?

m = ΔT / i Kf

m = 3.54 / 1 × 5.12

m = 0.69 mol

molality = moles / mass of benzene

moles = 0.172

The molar mass = mass / moles

The molar mass = 25.6 / 0.172

The molar mass = 148.8 g/mol

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Answer:

920,000 liters

Explanation:

i divided by 2

Answer:

Explanation:

pls mark brainliest

Answer:

True

Explanation:

The greenhouse effect is a natural process that occurs when certain gases in the atmosphere, such as carbon dioxide and water vapor, trap heat from the sun. This keeps the Earth's temperature within a range that is suitable for life. However, an increase in the amount of greenhouse gases, such as from human activities like burning fossil fuels, can intensify the greenhouse effect and lead to global warming. This warming can have a range of impacts on the environment, such as melting ice caps, rising sea levels, and more frequent and severe weather events.

Answer:

So if they find something that looks illogical they can find thing that are loggical and see if there just put together

Explanation:

Answer:

Non-metals tend to gain electrons

Explanation:

When 3.45 L of a 0.35 M H₃PO₄  to be diluted to a volume of 10.00 L, The concentration of H₃PO₄ resulted is 0.1207 M

The concentration of H₃PO₄  can be calculated as follows:

Dilution is the process of reducing the concentration of a solute in solution, usually by simply mixing the solute with more solvent by adding water to the solution.

The formula (M1V1=M2V2) represents the dilution formula in chemistry.

M1V1=M2V2

3.45 L x 0.35 M = M2 X 10.00 L

M2 =  3.45 L x 0.35 M

                10.00 L

M2 = 0.1207 M

Therefore, when 3.45 L of a 0.35 M H₃PO₄  to be diluted to a volume of 10.00 L, The concentration of H₃PO₄ resulted is 0.1207 M

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Answer:

I believe your answer should be 1 because filteration is a process of removing solid particuless/ and or gasses of matter from the lake in this interpretation. and filtration is used to allow fluidly bodies through but not matter.

The process of filtration is working to remove residue from the lake water. The correct option is A.

Filtration is basically a physical separation method that utilize a filter medium along with a complex structure through that only fluid can pass to separate solid matter and fluid from a mixture.

Filtration is the process of separating suspended particles from a fluid by passing the fluid through a porous material while retaining the suspended particles.

It is the separation of solids from a fluid (liquid or gas) by passing it through a filtering device.

The various types of filtration are detailed below.

Thus, the correct option is A.

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Answer:

Explanation:

The density of a substance can be found by using the formula

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

From the question we have

mass = 418.23 g

volume = 436.2 ml

\(density = \frac{418.23}{436 .2} \\ = 0.958803\)

We have the final answer as

Hope this helps you

The cellular organelle that is most affected by CO poisoning is mitochondria (option B).

Mitochondria is a cellular organelle found in eukaryotic cells and responsible for the production of energy in form of ATP.

Carbon monoxide (CO) is a common environmental pollutant released when fossil fuels are burned. The major target of this pollutant is the mitochondria.

Carbon monoxide (CO) binds to cytochrome oxidase of the electron transport chain in the mitochondria, thereby, blocking oxidative phosphorylation and ATP production. As ATP declines, there is no energy to drive the breathing muscles.

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The empirical formula of the new compound is:

The empirical formula is the chemical formula of a compound that shows the type of atom and the simplest ratio of the number of atoms in the compound. The ratio of the moles of atoms is the same as the ratio of their index numbers in the compound.

mass of compound = 79.836 g,

then the mass of Fe = 70% x 79.836 g = 55.9 g

               mass of O = 30% x 79.836 g = 23.9 g

nFe : nO = mass Fe/ArFe : mass O/ArO

nFe : nO = 55.9 g/56 : 23.9 g/16

nFe : nO = 0.99 : 1.4

nFe : nO = 1 : 1.5

nFe : nO = 2 : 3

So, the empirical formula of the compound is Fe₂O₃.

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Answer:

A. The Coriolis Effect bends them

Explanation:

The Coriolis Effect is a force that causes objects and other things that are not attached to the ground and which are moving over a large distance around the Earth such as the trade winds or air planes, to take an apparent curved path in their motion rather than moving in a straight line, due mainly to the rotation of the Earth

The Coriolis Effect is named after French mathematical physicist Gaspard-Gustave de Coriolis

In quantum mechanics, the angular momentum quantum number "l" defines the shape of the atomic orbital. The l value is an integer ranging from 0 to (n-1) where n is the principal quantum number.

Therefore, for an electron in the L(n=2) shell of an atom, the possible values of the angular momentum quantum number l would range from 0 to 1, since n=2.

This is because the L shell is the second shell, which has n=2. Therefore, it can have subshells with l=0 and l=1, also known as the s and p subshells respectively.

The angular momentum quantum number also has an effect on the energy of the electron, with higher l values having higher energy.

Thus, the possible values of the angular momentum quantum number l for an electron in the L(n=2) shell of an atom are l=0 and l=1.

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The comparison of IR spectra between 9-anthraldehyde and the product, along with specific evidence, allows us to conclude that the product is trans-9-(2-Phenylethenyl)-anthracene.

To determine if the product is trans-9-(2-Phenylethenyl)-anthracene, a comparison of the IR spectra of 9-anthraldehyde and the product is necessary. While the provided spectrum is for the product, we can discuss the general evidence that would support the conclusion.

1. Absence of aldehyde peak: The IR spectrum of 9-anthraldehyde would show a strong absorption peak around 1700-1750 cm^-1 corresponding to the C=O stretching of the aldehyde group. In the product spectrum, the absence of this peak would indicate the absence of the aldehyde group.

2. Presence of alkene peaks: The product, trans-9-(2-Phenylethenyl)-anthracene, contains a double bond. The IR spectrum would exhibit characteristic peaks around 1600-1680 cm^-1 for the C=C stretching vibrations, indicating the presence of the alkene group.

3. Similarity in aromatic regions: Both 9-anthraldehyde and the product contain aromatic systems. Comparing the regions of the spectrum corresponding to aromatic C-H stretching vibrations (around 2900-3100 cm^-1) and aromatic C-C stretching vibrations (around 1400-1600 cm^-1) can reveal similarities in these regions, supporting the conclusion.

While the provided spectrum for the product is not available, comparing it to the expected IR features of trans-9-(2-Phenylethenyl)-anthracene would provide further confirmation.

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Answer: C. A redox reaction at two electrodes causes electrons to flow

Explanation:

A galvanic cell work like a a redox reaction at two electrodes causes electrons to flow.

Redox reactions include a modification inside the oxidation state of the substrate. Losing of electrons or a rise in an element's oxidation state are both considered to be oxidation. Gaining electrons or lowering an object's or its atoms' oxidation state are both considered reductions.

An electrochemical cell wherein an electric current being produced spontaneously is called a galvanic cell as well as voltaic cell, respectively called just after scientists Luigi Galvani as well as Alessandro Volta. reduction-oxidation processes

In order to create a conduit for the passage of electrons through into the wire, each half-reaction in a galvanic cell is connected to the other by a wire, which allows the movement of electrons to be separated in the oxidation and reduction processes.

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The number of molecules of SO₃ can be formed from 0.89 moles of O₂ is 1.072 × 10²⁴ molecules

The number of molecules in a substance can be calculated by multiplying the number of moles of the substance by Avogadro's number (6.02 × 10²³).

However, the number of moles of sulfur oxide in the chemical equation must be calculated first. The chemical equation is as follows:

2SO₂(g) + O₂(g) → 2SO₃(g)

2 moles of SO₃ is produced from 1 mole of oxygen gas. This means that 0.89 moles of oxygen gas will produce 0.89 × 2 = 1.78 moles of SO₃.

no of molecules = 1.78 moles × 6.02 × 10²³ = 1.072 × 10²⁴ molecules

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The atomic number of an element represents the number of protons in an atom of that element. Since the isotope given is Mn-59, the atomic number of manganese (Mn) remains the same, which is 25.

If an atom of Mn-59 has a charge of +5, it means that it has lost 5 electrons. The number of protons in an atom is equal to its atomic number, and the number of electrons is equal to the number of protons in a neutral atom. Therefore, if the atom has lost 5 electrons, the number of protons remains the same, which is 25.

So, an atom of Mn-59 with a charge of +5 has 25 protons.

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The potential of the cell helps to evaluate the voltage difference between two half-cells.

Changing the concentration of one solution in the cell will increase the voltage potential of the cell because putting the system further out of equilibrium.

A chemical reaction is affected by three main variables mainly temperature, surface area, and concentration. In an electrochemical cell, the higher concentration allows the increase in voltage difference.

The higher concentration of reactant moves the reaction in the forward direction to react at a higher pace, and as a result, higher voltage is observed.

A concentration cell acts to dilute the more concentrated solution and concentrate the more dilute solution, creating a voltage as the cell reaches an equilibrium.

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In order to solve this, you will need to know how many moles of CaCl2 you will need, and to do so, you must look at the concentration of the solution.

You are told that the concentration of the solution is 0.19M, meaning that there is 0.19 moles of CaCl2 for every 1 liter of solution. However, you don't have 1 liter of solution, you have 445.2 mL. You must convert this to liters by dividing by 1000.

445.2 mL *  (1 L / 1000 mL) = 0.4452 L

Now, you can solve for how many moles the solution must have. Since M = mol / L and you are given M and L, you can set up an equality as follows:

0.19M = mol / 0.4452 L

Now, in order to find the number of moles, you multiply both sides by 0.4452L

0.19M * 0.4452 L = moles = 0.084588mol  

Now, you must calculate the molar mass of CaCl2 by using the periodic table

MM Ca = 40.078 g/mol

MM Cl = 35.452 g/mol

40.078 + (35.452 * 2) = 110.982 g/mol

Now you multiply the number of moles in the solution you calculated by the molar mass.

0.084588mol * 110.982 g/mol = 9.387 g CaCl2

The change in entropy (ΔS) for each system cannot be determined without further information. To determine whether a change will increase, decrease, or leave the entropy unchanged, we need additional information such as the specific heat capacities, number of moles, or the nature of the process (reversible or irreversible).

In the first system, where helium is cooled from 35.0°C to 1.0°C while the volume is held constant at 10.0 L, we do not have enough information to determine the change in entropy. The change in entropy depends on the specific heat capacity of helium and whether the process is reversible or irreversible.

Similarly, in the second system, involving the evaporation of a few grams of liquid acetone at a constant temperature of 86.0°C, we lack the necessary information to determine the change in entropy.

The entropy change during the phase transition from liquid to gas depends on the enthalpy of vaporization and the temperature at which it occurs.

In the third system, where nitrogen is cooled from 67.0°C to -8.0°C and expanded from a volume of 7.0 L to 14.0 L, we again cannot determine the change in entropy without additional details. The change in entropy depends on the specific heat capacity, the nature of the expansion process, and whether there are any energy transfers involved.

In conclusion, without further information, it is not possible to determine the change in entropy (ΔS) for the described systems. The entropy change depends on various factors specific to each system, and the given information is insufficient to make a definitive determination.

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Answer: The total mass of the reactants must equal the total mass of the products.

Explanation: This is because the mass of all reactants is the mass of all products. Remember that escaping gases from products can lessen the mass. But in all, all products have the same mass as the reactants. I hope this helps!